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Tables.mo
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within Modelica.Blocks;
package Tables
"Library of blocks to interpolate in one and two-dimensional tables"
extends Modelica.Icons.Package;
block CombiTable1Ds
"Table look-up in one dimension (matrix/file) with one input and n outputs"
extends Modelica.Blocks.Interfaces.SIMO(final nout=size(columns, 1));
parameter Boolean tableOnFile=false
"= true, if table is defined on file or in function usertab"
annotation (Dialog(group="Table data definition"));
parameter Real table[:, :] = fill(0.0, 0, 2)
"Table matrix (grid = first column; e.g., table=[0, 0; 1, 1; 2, 4])"
annotation (Dialog(group="Table data definition",enable=not tableOnFile));
parameter String tableName="NoName"
"Table name on file or in function usertab (see docu)"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter String fileName="NoName" "File where matrix is stored"
annotation (Dialog(
group="Table data definition",
enable=tableOnFile,
loadSelector(filter="Text files (*.txt);;MATLAB MAT-files (*.mat)",
caption="Open file in which table is present")));
parameter Boolean verboseRead=true
"= true, if info message that file is loading is to be printed"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter Integer columns[:]=2:size(table, 2)
"Columns of table to be interpolated"
annotation (Dialog(group="Table data interpretation"));
parameter Modelica.Blocks.Types.Smoothness smoothness=Modelica.Blocks.Types.Smoothness.LinearSegments
"Smoothness of table interpolation"
annotation (Dialog(group="Table data interpretation"));
parameter Modelica.Blocks.Types.Extrapolation extrapolation=Modelica.Blocks.Types.Extrapolation.LastTwoPoints
"Extrapolation of data outside the definition range"
annotation (Dialog(group="Table data interpretation"));
parameter Boolean verboseExtrapolation=false
"= true, if warning messages are to be printed if table input is outside the definition range"
annotation (Dialog(group="Table data interpretation", enable=extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint));
final parameter Real u_min=Internal.getTable1DAbscissaUmin(tableID)
"Minimum abscissa value defined in table";
final parameter Real u_max=Internal.getTable1DAbscissaUmax(tableID)
"Maximum abscissa value defined in table";
protected
parameter Modelica.Blocks.Types.ExternalCombiTable1D tableID=
Modelica.Blocks.Types.ExternalCombiTable1D(
if tableOnFile then tableName else "NoName",
if tableOnFile and fileName <> "NoName" and not Modelica.Utilities.Strings.isEmpty(fileName) then fileName else "NoName",
table,
columns,
smoothness,
extrapolation,
if tableOnFile then verboseRead else false) "External table object";
function readTableData =
Modelica.Blocks.Tables.Internal.readTable1DData "Read table data from text or MATLAB MAT-file";
// No longer used, but kept for backward compatibility
equation
if tableOnFile then
assert(tableName <> "NoName",
"tableOnFile = true and no table name given");
else
assert(size(table, 1) > 0 and size(table, 2) > 0,
"tableOnFile = false and parameter table is an empty matrix");
end if;
if verboseExtrapolation and (
extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or
extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint) then
assert(noEvent(u >= u_min), "
Extrapolation warning: The value u (=" + String(u) + ") must be greater or equal
than the minimum abscissa value u_min (=" + String(u_min) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u <= u_max), "
Extrapolation warning: The value u (=" + String(u) + ") must be less or equal
than the maximum abscissa value u_max (=" + String(u_max) + ") defined in the table.
", level=AssertionLevel.warning);
end if;
if smoothness == Modelica.Blocks.Types.Smoothness.ConstantSegments then
for i in 1:nout loop
y[i] = Internal.getTable1DValueNoDer(tableID, i, u);
end for;
elseif smoothness == Modelica.Blocks.Types.Smoothness.LinearSegments then
for i in 1:nout loop
y[i] = Internal.getTable1DValueNoDer2(tableID, i, u);
end for;
else
for i in 1:nout loop
y[i] = Internal.getTable1DValue(tableID, i, u);
end for;
end if;
annotation (
Documentation(info="<html>
<p>
<strong>Univariate constant</strong>, <strong>linear</strong> or <strong>cubic Hermite
spline interpolation</strong> in <strong>one</strong> dimension of a
<strong>table</strong>.
Via parameter <strong>columns</strong> it can be defined how many columns of the
table are interpolated. If, e.g., columns={2,4}, it is assumed that
2 output signals are present and that the first output interpolates
via column 2 and the second output interpolates via column 4 of the
table matrix.
</p>
<p>
The grid points and function values are stored in a matrix \"table[i,j]\",
where the first column \"table[:,1]\" contains the grid points and the
other columns contain the data to be interpolated. Example:
</p>
<blockquote><pre>
table = [0, 0;
1, 1;
2, 4;
4, 16]
If, e.g., the input u = 1.0, the output y = 1.0,
e.g., the input u = 1.5, the output y = 2.5,
e.g., the input u = 2.0, the output y = 4.0,
e.g., the input u =-1.0, the output y = -1.0 (i.e., extrapolation).
</pre></blockquote>
<ul>
<li>The interpolation interval is found by a binary search where the interval used in the
last call is used as start interval.</li>
<li>Via parameter <strong>smoothness</strong> it is defined how the data is interpolated:
<blockquote><pre>
smoothness = 1: Linear interpolation
= 2: Akima interpolation: Smooth interpolation by cubic Hermite
splines such that der(y) is continuous, also if extrapolated.
= 3: Constant segments
= 4: Fritsch-Butland interpolation: Smooth interpolation by cubic
Hermite splines such that y preserves the monotonicity and
der(y) is continuous, also if extrapolated.
= 5: Steffen interpolation: Smooth interpolation by cubic Hermite
splines such that y preserves the monotonicity and der(y)
is continuous, also if extrapolated.
= 6: Modified Akima interpolation: Smooth interpolation by cubic
Hermite splines such that der(y) is continuous, also if
extrapolated. Additionally, overshoots and edge cases of the
original Akima interpolation method are avoided.
</pre></blockquote></li>
<li>Values <strong>outside</strong> of the table range, are computed by
extrapolation according to the setting of parameter <strong>extrapolation</strong>:
<blockquote><pre>
extrapolation = 1: Hold the first or last value of the table,
if outside of the table scope.
= 2: Extrapolate by using the derivative at the first/last table
points if outside of the table scope.
(If smoothness is LinearSegments or ConstantSegments
this means to extrapolate linearly through the first/last
two table points.).
= 3: Periodically repeat the table data (periodical function).
= 4: No extrapolation, i.e. extrapolation triggers an error
</pre></blockquote></li>
<li>If the table has only <strong>one row</strong>, the table value is returned,
independent of the value of the input signal.</li>
<li>The grid values (first column) have to be strictly increasing.</li>
</ul>
<p>
The table matrix can be defined in the following ways:
</p>
<ol>
<li>Explicitly supplied as <strong>parameter matrix</strong> \"table\",
and the other parameters have the following values:
<blockquote><pre>
tableName is \"NoName\" or has only blanks,
fileName is \"NoName\" or has only blanks.
</pre></blockquote></li>
<li><strong>Read</strong> from a <strong>file</strong> \"fileName\" where the matrix is stored as
\"tableName\". Both text and MATLAB MAT-file format is possible.
(The text format is described below).
The MAT-file format comes in four different versions: v4, v6, v7 and v7.3.
The library supports at least v4, v6 and v7 whereas v7.3 is optional.
It is most convenient to generate the MAT-file from FreeMat or MATLAB®
by command
<blockquote><pre>
save tables.mat tab1 tab2 tab3
</pre></blockquote>
or Scilab by command
<blockquote><pre>
savematfile tables.mat tab1 tab2 tab3
</pre></blockquote>
when the three tables tab1, tab2, tab3 should be used from the model.<br>
Note, a fileName can be defined as URI by using the helper function
<a href=\"modelica://Modelica.Utilities.Files.loadResource\">loadResource</a>.</li>
<li>Statically stored in function \"usertab\" in file \"usertab.c\".
The matrix is identified by \"tableName\". Parameter
fileName = \"NoName\" or has only blanks. Row-wise storage is always to be
preferred as otherwise the table is reallocated and transposed.
See the <a href=\"modelica://Modelica.Blocks.Tables\">Tables</a> package
documentation for more details.</li>
</ol>
<p>
When the constant \"NO_FILE_SYSTEM\" is defined, all file I/O related parts of the
source code are removed by the C-preprocessor, such that no access to files takes place.
</p>
<p>
If tables are read from a text file, the file needs to have the
following structure (\"-----\" is not part of the file content):
</p>
<blockquote><pre>
-----------------------------------------------------
#1
double tab1(5,2) # comment line
0 0
1 1
2 4
3 9
4 16
double tab2(5,2) # another comment line
0 0
2 2
4 8
6 18
8 32
-----------------------------------------------------
</pre></blockquote>
<p>
Note, that the first two characters in the file need to be
\"#1\" (a line comment defining the version number of the file format).
Afterwards, the corresponding matrix has to be declared
with type (= \"double\" or \"float\"), name and actual dimensions.
Finally, in successive rows of the file, the elements of the matrix
have to be given. The elements have to be provided as a sequence of
numbers in row-wise order (therefore a matrix row can span several
lines in the file and need not start at the beginning of a line).
Numbers have to be given according to C syntax (such as 2.3, -2, +2.e4).
Number separators are spaces, tab (\\t), comma (,), or semicolon (;).
Several matrices may be defined one after another. Line comments start
with the hash symbol (#) and can appear everywhere.
Text files should either be ASCII or UTF-8 encoded, where UTF-8 encoded strings are only allowed in line comments and an optional UTF-8 BOM at the start of the text file is ignored.
Other characters, like trailing non comments, are not allowed in the file.
</p>
<p>
MATLAB is a registered trademark of The MathWorks, Inc.
</p>
</html>"),
Icon(
coordinateSystem(preserveAspectRatio=true,
extent={{-100.0,-100.0},{100.0,100.0}}),
graphics={
Line(points={{-60.0,40.0},{-60.0,-40.0},{60.0,-40.0},{60.0,40.0},{30.0,40.0},{30.0,-40.0},{-30.0,-40.0},{-30.0,40.0},{-60.0,40.0},{-60.0,20.0},{60.0,20.0},{60.0,0.0},{-60.0,0.0},{-60.0,-20.0},{60.0,-20.0},{60.0,-40.0},{-60.0,-40.0},{-60.0,40.0},{60.0,40.0},{60.0,-40.0}}),
Line(points={{0.0,40.0},{0.0,-40.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,20.0},{-30.0,40.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,0.0},{-30.0,20.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,-20.0},{-30.0,0.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,-40.0},{-30.0,-20.0}})}),
Diagram(coordinateSystem(preserveAspectRatio=true, extent={{-100,-100},{
100,100}})));
end CombiTable1Ds;
block CombiTable1Dv
"Table look-up in one dimension (matrix/file) with n inputs and n outputs"
extends Modelica.Blocks.Interfaces.MIMOs(final n=size(columns, 1));
parameter Boolean tableOnFile=false
"= true, if table is defined on file or in function usertab"
annotation (Dialog(group="Table data definition"));
parameter Real table[:, :] = fill(0.0, 0, 2)
"Table matrix (grid = first column; e.g., table=[0, 0; 1, 1; 2, 4])"
annotation (Dialog(group="Table data definition",enable=not tableOnFile));
parameter String tableName="NoName"
"Table name on file or in function usertab (see docu)"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter String fileName="NoName" "File where matrix is stored"
annotation (Dialog(
group="Table data definition",
enable=tableOnFile,
loadSelector(filter="Text files (*.txt);;MATLAB MAT-files (*.mat)",
caption="Open file in which table is present")));
parameter Boolean verboseRead=true
"= true, if info message that file is loading is to be printed"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter Integer columns[:]=2:size(table, 2)
"Columns of table to be interpolated"
annotation (Dialog(group="Table data interpretation"));
parameter Modelica.Blocks.Types.Smoothness smoothness=Modelica.Blocks.Types.Smoothness.LinearSegments
"Smoothness of table interpolation"
annotation (Dialog(group="Table data interpretation"));
parameter Modelica.Blocks.Types.Extrapolation extrapolation=Modelica.Blocks.Types.Extrapolation.LastTwoPoints
"Extrapolation of data outside the definition range"
annotation (Dialog(group="Table data interpretation"));
parameter Boolean verboseExtrapolation=false
"= true, if warning messages are to be printed if table input is outside the definition range"
annotation (Dialog(group="Table data interpretation", enable=extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint));
final parameter Real u_min=Internal.getTable1DAbscissaUmin(tableID)
"Minimum abscissa value defined in table";
final parameter Real u_max=Internal.getTable1DAbscissaUmax(tableID)
"Maximum abscissa value defined in table";
protected
parameter Modelica.Blocks.Types.ExternalCombiTable1D tableID=
Modelica.Blocks.Types.ExternalCombiTable1D(
if tableOnFile then tableName else "NoName",
if tableOnFile and fileName <> "NoName" and not Modelica.Utilities.Strings.isEmpty(fileName) then fileName else "NoName",
table,
columns,
smoothness,
extrapolation,
if tableOnFile then verboseRead else false) "External table object";
function readTableData =
Modelica.Blocks.Tables.Internal.readTable1DData "Read table data from text or MATLAB MAT-file";
// No longer used, but kept for backward compatibility
equation
if tableOnFile then
assert(tableName <> "NoName",
"tableOnFile = true and no table name given");
else
assert(size(table, 1) > 0 and size(table, 2) > 0,
"tableOnFile = false and parameter table is an empty matrix");
end if;
if verboseExtrapolation and (
extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or
extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint) then
for i in 1:n loop
assert(noEvent(u[i] >= u_min), "
Extrapolation warning: The value u[" + String(i) +"] (=" + String(u[i]) + ") must be greater or equal
than the minimum abscissa value u_min (=" + String(u_min) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u[i] <= u_max), "
Extrapolation warning: The value u[" + String(i) +"] (=" + String(u[i]) + ") must be less or equal
than the maximum abscissa value u_max (=" + String(u_max) + ") defined in the table.
", level=AssertionLevel.warning);
end for;
end if;
if smoothness == Modelica.Blocks.Types.Smoothness.ConstantSegments then
for i in 1:n loop
y[i] = Internal.getTable1DValueNoDer(tableID, i, u[i]);
end for;
elseif smoothness == Modelica.Blocks.Types.Smoothness.LinearSegments then
for i in 1:n loop
y[i] = Internal.getTable1DValueNoDer2(tableID, i, u[i]);
end for;
else
for i in 1:n loop
y[i] = Internal.getTable1DValue(tableID, i, u[i]);
end for;
end if;
annotation (
Documentation(info="<html>
<p>
<strong>Univariate constant</strong>, <strong>linear</strong> or <strong>cubic Hermite
spline interpolation</strong> in <strong>one</strong> dimension of a
<strong>table</strong>.
Via parameter <strong>columns</strong> it can be defined how many columns of the
table are interpolated. If, e.g., columns={2,4}, it is assumed that 2 input
and 2 output signals are present and that the first output interpolates
the first input via column 2 and the second output interpolates the
second input via column 4 of the table matrix.
</p>
<p>
The grid points and function values are stored in a matrix \"table[i,j]\",
where the first column \"table[:,1]\" contains the grid points and the
other columns contain the data to be interpolated. Example:
</p>
<blockquote><pre>
table = [0, 0;
1, 1;
2, 4;
4, 16]
If, e.g., the input u = 1.0, the output y = 1.0,
e.g., the input u = 1.5, the output y = 2.5,
e.g., the input u = 2.0, the output y = 4.0,
e.g., the input u =-1.0, the output y = -1.0 (i.e., extrapolation).
</pre></blockquote>
<ul>
<li>The interpolation interval is found by a binary search where the interval used in the
last call is used as start interval.</li>
<li>Via parameter <strong>smoothness</strong> it is defined how the data is interpolated:
<blockquote><pre>
smoothness = 1: Linear interpolation
= 2: Akima interpolation: Smooth interpolation by cubic Hermite
splines such that der(y) is continuous, also if extrapolated.
= 3: Constant segments
= 4: Fritsch-Butland interpolation: Smooth interpolation by cubic
Hermite splines such that y preserves the monotonicity and
der(y) is continuous, also if extrapolated.
= 5: Steffen interpolation: Smooth interpolation by cubic Hermite
splines such that y preserves the monotonicity and der(y)
is continuous, also if extrapolated.
= 6: Modified Akima interpolation: Smooth interpolation by cubic
Hermite splines such that der(y) is continuous, also if
extrapolated. Additionally, overshoots and edge cases of the
original Akima interpolation method are avoided.
</pre></blockquote></li>
<li>Values <strong>outside</strong> of the table range, are computed by
extrapolation according to the setting of parameter <strong>extrapolation</strong>:
<blockquote><pre>
extrapolation = 1: Hold the first or last value of the table,
if outside of the table scope.
= 2: Extrapolate by using the derivative at the first/last table
points if outside of the table scope.
(If smoothness is LinearSegments or ConstantSegments
this means to extrapolate linearly through the first/last
two table points.).
= 3: Periodically repeat the table data (periodical function).
= 4: No extrapolation, i.e. extrapolation triggers an error
</pre></blockquote></li>
<li>If the table has only <strong>one row</strong>, the table value is returned,
independent of the value of the input signal.</li>
<li>The grid values (first column) have to be strictly increasing.</li>
</ul>
<p>
The table matrix can be defined in the following ways:
</p>
<ol>
<li>Explicitly supplied as <strong>parameter matrix</strong> \"table\",
and the other parameters have the following values:
<blockquote><pre>
tableName is \"NoName\" or has only blanks,
fileName is \"NoName\" or has only blanks.
</pre></blockquote></li>
<li><strong>Read</strong> from a <strong>file</strong> \"fileName\" where the matrix is stored as
\"tableName\". Both text and MATLAB MAT-file format is possible.
(The text format is described below).
The MAT-file format comes in four different versions: v4, v6, v7 and v7.3.
The library supports at least v4, v6 and v7 whereas v7.3 is optional.
It is most convenient to generate the MAT-file from FreeMat or MATLAB®
by command
<blockquote><pre>
save tables.mat tab1 tab2 tab3
</pre></blockquote>
or Scilab by command
<blockquote><pre>
savematfile tables.mat tab1 tab2 tab3
</pre></blockquote>
when the three tables tab1, tab2, tab3 should be used from the model.<br>
Note, a fileName can be defined as URI by using the helper function
<a href=\"modelica://Modelica.Utilities.Files.loadResource\">loadResource</a>.</li>
<li>Statically stored in function \"usertab\" in file \"usertab.c\".
The matrix is identified by \"tableName\". Parameter
fileName = \"NoName\" or has only blanks. Row-wise storage is always to be
preferred as otherwise the table is reallocated and transposed.
See the <a href=\"modelica://Modelica.Blocks.Tables\">Tables</a> package
documentation for more details.</li>
</ol>
<p>
When the constant \"NO_FILE_SYSTEM\" is defined, all file I/O related parts of the
source code are removed by the C-preprocessor, such that no access to files takes place.
</p>
<p>
If tables are read from a text file, the file needs to have the
following structure (\"-----\" is not part of the file content):
</p>
<blockquote><pre>
-----------------------------------------------------
#1
double tab1(5,2) # comment line
0 0
1 1
2 4
3 9
4 16
double tab2(5,2) # another comment line
0 0
2 2
4 8
6 18
8 32
-----------------------------------------------------
</pre></blockquote>
<p>
Note, that the first two characters in the file need to be
\"#1\" (a line comment defining the version number of the file format).
Afterwards, the corresponding matrix has to be declared
with type (= \"double\" or \"float\"), name and actual dimensions.
Finally, in successive rows of the file, the elements of the matrix
have to be given. The elements have to be provided as a sequence of
numbers in row-wise order (therefore a matrix row can span several
lines in the file and need not start at the beginning of a line).
Numbers have to be given according to C syntax (such as 2.3, -2, +2.e4).
Number separators are spaces, tab (\\t), comma (,), or semicolon (;).
Several matrices may be defined one after another. Line comments start
with the hash symbol (#) and can appear everywhere.
Text files should either be ASCII or UTF-8 encoded, where UTF-8 encoded strings are only allowed in line comments and an optional UTF-8 BOM at the start of the text file is ignored.
Other characters, like trailing non comments, are not allowed in the file.
</p>
<p>
MATLAB is a registered trademark of The MathWorks, Inc.
</p>
</html>"),
Icon(
coordinateSystem(preserveAspectRatio=true,
extent={{-100.0,-100.0},{100.0,100.0}}),
graphics={
Line(points={{-60.0,40.0},{-60.0,-40.0},{60.0,-40.0},{60.0,40.0},{30.0,40.0},{30.0,-40.0},{-30.0,-40.0},{-30.0,40.0},{-60.0,40.0},{-60.0,20.0},{60.0,20.0},{60.0,0.0},{-60.0,0.0},{-60.0,-20.0},{60.0,-20.0},{60.0,-40.0},{-60.0,-40.0},{-60.0,40.0},{60.0,40.0},{60.0,-40.0}}),
Line(points={{0.0,40.0},{0.0,-40.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,20.0},{-30.0,40.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,0.0},{-30.0,20.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,-20.0},{-30.0,0.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-60.0,-40.0},{-30.0,-20.0}})}),
Diagram(coordinateSystem(preserveAspectRatio=true, extent={{-100,-100},{
100,100}})));
end CombiTable1Dv;
block CombiTable2Ds "Table look-up in two dimensions (matrix/file)"
extends Modelica.Blocks.Interfaces.SI2SO;
extends Internal.CombiTable2DBase;
function readTableData =
Modelica.Blocks.Tables.Internal.readTable2DData "Read table data from text or MATLAB MAT-file";
// No longer used, but kept for backward compatibility
equation
if verboseExtrapolation and (
extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or
extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint) then
assert(noEvent(u1 >= u_min[1]), "
Extrapolation warning: The value u1 (=" + String(u1) + ") must be greater or equal
than the minimum abscissa value u_min[1] (=" + String(u_min[1]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u1 <= u_max[1]), "
Extrapolation warning: The value u1 (=" + String(u1) + ") must be less or equal
than the maximum abscissa value u_max[1] (=" + String(u_max[1]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u2 >= u_min[2]), "
Extrapolation warning: The value u2 (=" + String(u2) + ") must be greater or equal
than the minimum abscissa value u_min[2] (=" + String(u_min[2]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u2 <= u_max[2]), "
Extrapolation warning: The value u2 (=" + String(u2) + ") must be less or equal
than the maximum abscissa value u_max[2] (=" + String(u_max[2]) + ") defined in the table.
", level=AssertionLevel.warning);
end if;
if smoothness == Modelica.Blocks.Types.Smoothness.ConstantSegments then
y = Internal.getTable2DValueNoDer(tableID, u1, u2);
elseif smoothness == Modelica.Blocks.Types.Smoothness.LinearSegments then
y = Internal.getTable2DValueNoDer2(tableID, u1, u2);
else
y = Internal.getTable2DValue(tableID, u1, u2);
end if;
annotation (
Documentation(info="<html>
<p>
<strong>Bivariate constant</strong>, <strong>bilinear</strong> or <strong>bivariate
Akima interpolation</strong> of a <strong>two-dimensional table</strong>.
The grid points and function values are stored in a matrix \"table[i,j]\",
where:
</p>
<ul>
<li>the first column \"table[2:,1]\" contains the u1 grid points,</li>
<li>the first row \"table[1,2:]\" contains the u2 grid points,</li>
<li>the other rows and columns contain the data to be interpolated.</li>
</ul>
<p>
Example:
</p>
<blockquote><pre>
| | | |
| 1.0 | 2.0 | 3.0 | // u2
----*-------*-------*-------*
1.0 | 1.0 | 3.0 | 5.0 |
----*-------*-------*-------*
2.0 | 2.0 | 4.0 | 6.0 |
----*-------*-------*-------*
// u1
is defined as
table = [0.0, 1.0, 2.0, 3.0;
1.0, 1.0, 3.0, 5.0;
2.0, 2.0, 4.0, 6.0]
If, e.g., the input u1 is 1.0, input u2 is 1.0 and smoothness is LinearSegments, the output y is 1.0,
e.g., the input u1 is 2.0, input u2 is 1.5 and smoothness is LinearSegments, the output y is 3.0.
</pre></blockquote>
<ul>
<li>The interpolation interval is found by a binary search where the interval used in the
last call is used as start interval.</li>
<li>Via parameter <strong>smoothness</strong> it is defined how the data is interpolated:
<blockquote><pre>
smoothness = 1: Bilinear interpolation
= 2: Bivariate Akima interpolation: Smooth interpolation by bicubic Hermite
splines such that der(y) is continuous, also if extrapolated.
= 3: Constant segments
= 4: Fritsch-Butland interpolation: Not supported
= 5: Steffen interpolation: Not supported
= 6: Modified Akima interpolation: Not supported
</pre></blockquote></li>
<li>Values <strong>outside</strong> of the table range, are computed by
extrapolation according to the setting of parameter <strong>extrapolation</strong>:
<blockquote><pre>
extrapolation = 1: Hold the first or last values of the table,
if outside of the table scope.
= 2: Extrapolate by using the derivative at the first/last table
points if outside of the table scope.
(If smoothness is LinearSegments or ConstantSegments
this means to extrapolate linearly through the first/last
two table points.).
= 3: Periodically repeat the table data (periodical function).
= 4: No extrapolation, i.e. extrapolation triggers an error
</pre></blockquote></li>
<li>If the table has only <strong>one element</strong>, the table value is returned,
independent of the value of the input signal.</li>
<li>The grid values (first column and first row) have to be strictly
increasing.</li>
</ul>
<p>
The table matrix can be defined in the following ways:
</p>
<ol>
<li>Explicitly supplied as <strong>parameter matrix</strong> \"table\",
and the other parameters have the following values:
<blockquote><pre>
tableName is \"NoName\" or has only blanks,
fileName is \"NoName\" or has only blanks.
</pre></blockquote></li>
<li><strong>Read</strong> from a <strong>file</strong> \"fileName\" where the matrix is stored as
\"tableName\". Both text and MATLAB MAT-file format is possible.
(The text format is described below).
The MAT-file format comes in four different versions: v4, v6, v7 and v7.3.
The library supports at least v4, v6 and v7 whereas v7.3 is optional.
It is most convenient to generate the MAT-file from FreeMat or MATLAB®
by command
<blockquote><pre>
save tables.mat tab1 tab2 tab3
</pre></blockquote>
or Scilab by command
<blockquote><pre>
savematfile tables.mat tab1 tab2 tab3
</pre></blockquote>
when the three tables tab1, tab2, tab3 should be used from the model.<br>
Note, a fileName can be defined as URI by using the helper function
<a href=\"modelica://Modelica.Utilities.Files.loadResource\">loadResource</a>.</li>
<li>Statically stored in function \"usertab\" in file \"usertab.c\".
The matrix is identified by \"tableName\". Parameter
fileName = \"NoName\" or has only blanks. Row-wise storage is always to be
preferred as otherwise the table is reallocated and transposed.
See the <a href=\"modelica://Modelica.Blocks.Tables\">Tables</a> package
documentation for more details.</li>
</ol>
<p>
When the constant \"NO_FILE_SYSTEM\" is defined, all file I/O related parts of the
source code are removed by the C-preprocessor, such that no access to files takes place.
</p>
<p>
If tables are read from a text file, the file needs to have the
following structure (\"-----\" is not part of the file content):
</p>
<blockquote><pre>
-----------------------------------------------------
#1
double table2D_1(3,4) # comment line
0.0 1.0 2.0 3.0 # u[2] grid points
1.0 1.0 3.0 5.0
2.0 2.0 4.0 6.0
double table2D_2(4,4) # comment line
0.0 1.0 2.0 3.0 # u[2] grid points
1.0 1.0 3.0 5.0
2.0 2.0 4.0 6.0
3.0 3.0 5.0 7.0
-----------------------------------------------------
</pre></blockquote>
<p>
Note, that the first two characters in the file need to be
\"#1\" (a line comment defining the version number of the file format).
Afterwards, the corresponding matrix has to be declared
with type (= \"double\" or \"float\"), name and actual dimensions.
Finally, in successive rows of the file, the elements of the matrix
have to be given. The elements have to be provided as a sequence of
numbers in row-wise order (therefore a matrix row can span several
lines in the file and need not start at the beginning of a line).
Numbers have to be given according to C syntax (such as 2.3, -2, +2.e4).
Number separators are spaces, tab (\\t), comma (,), or semicolon (;).
Several matrices may be defined one after another. Line comments start
with the hash symbol (#) and can appear everywhere.
Text files should either be ASCII or UTF-8 encoded, where UTF-8 encoded strings are only allowed in line comments and an optional UTF-8 BOM at the start of the text file is ignored.
Other characters, like trailing non comments, are not allowed in the file.
The matrix elements are interpreted in exactly the same way
as if the matrix is given as a parameter. For example, the first
column \"table2D_1[2:,1]\" contains the u[1] grid points,
and the first row \"table2D_1[1,2:]\" contains the u[2] grid points.
</p>
<p>
MATLAB is a registered trademark of The MathWorks, Inc.
</p>
</html>"));
end CombiTable2Ds;
block CombiTable2Dv "Table look-up in two dimensions (matrix/file) with vector inputs and vector output of size n"
extends Modelica.Blocks.Interfaces.MI2MO;
extends Internal.CombiTable2DBase;
equation
if verboseExtrapolation and (
extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or
extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint) then
for j in 1:n loop
assert(noEvent(u1[j] >= u_min[1]), "
Extrapolation warning: The value u1[" + String(j) + "] (=" + String(u1[j]) + ") must be greater or equal
than the minimum abscissa value u_min[1] (=" + String(u_min[1]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u1[j] <= u_max[1]), "
Extrapolation warning: The value u1[" + String(j) + "] (=" + String(u1[j]) + ") must be less or equal
than the maximum abscissa value u_max[1] (=" + String(u_max[1]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u2[j] >= u_min[2]), "
Extrapolation warning: The value u2[" + String(j) + "] (=" + String(u2[j]) + ") must be greater or equal
than the minimum abscissa value u_min[2] (=" + String(u_min[2]) + ") defined in the table.
", level=AssertionLevel.warning);
assert(noEvent(u2[j] <= u_max[2]), "
Extrapolation warning: The value u2[" + String(j) + "] (=" + String(u2[j]) + ") must be less or equal
than the maximum abscissa value u_max[2] (=" + String(u_max[2]) + ") defined in the table.
", level=AssertionLevel.warning);
end for;
end if;
if smoothness == Modelica.Blocks.Types.Smoothness.ConstantSegments then
for j in 1:n loop
y[j] = Modelica.Blocks.Tables.Internal.getTable2DValueNoDer(tableID, u1[j], u2[j]);
end for;
elseif smoothness == Modelica.Blocks.Types.Smoothness.LinearSegments then
for j in 1:n loop
y[j] = Modelica.Blocks.Tables.Internal.getTable2DValueNoDer2(tableID, u1[j], u2[j]);
end for;
else
for j in 1:n loop
y[j] = Modelica.Blocks.Tables.Internal.getTable2DValue(tableID, u1[j], u2[j]);
end for;
end if;
annotation(Documentation(info="<html>
<p>
<strong>Bivariate constant</strong>, <strong>bilinear</strong> or <strong>bivariate
Akima interpolation</strong> of a <strong>two-dimensional table</strong>.
The grid points and function values are stored in a matrix \"table[i,j]\",
where:
</p>
<ul>
<li>the first column \"table[2:,1]\" contains the u1 grid points,</li>
<li>the first row \"table[1,2:]\" contains the u2 grid points,</li>
<li>the other rows and columns contain the data to be interpolated.</li>
</ul>
<p>
Example:
</p>
<blockquote><pre>
| | | |
| 1.0 | 2.0 | 3.0 | // u2
----*-------*-------*-------*
1.0 | 1.0 | 3.0 | 5.0 |
----*-------*-------*-------*
2.0 | 2.0 | 4.0 | 6.0 |
----*-------*-------*-------*
// u1
is defined as
table = [0.0, 1.0, 2.0, 3.0;
1.0, 1.0, 3.0, 5.0;
2.0, 2.0, 4.0, 6.0]
If, e.g., the input u1 is {1.0}, input u2 is {1.0} and smoothness is LinearSegments, the output y is {1.0},
e.g., the input u1 is {2.0}, input u2 is {1.5} and smoothness is LinearSegments, the output y is {3.0}.
</pre></blockquote>
<ul>
<li>The interpolation interval is found by a binary search where the interval used in the
last call is used as start interval.</li>
<li>Via parameter <strong>smoothness</strong> it is defined how the data is interpolated:
<blockquote><pre>
smoothness = 1: Bilinear interpolation
= 2: Bivariate Akima interpolation: Smooth interpolation by bicubic Hermite
splines such that der(y) is continuous, also if extrapolated.
= 3: Constant segments
= 4: Fritsch-Butland interpolation: Not supported
= 5: Steffen interpolation: Not supported
= 6: Modified Akima interpolation: Not supported
</pre></blockquote></li>
<li>Values <strong>outside</strong> of the table range, are computed by
extrapolation according to the setting of parameter <strong>extrapolation</strong>:
<blockquote><pre>
extrapolation = 1: Hold the first or last values of the table,
if outside of the table scope.
= 2: Extrapolate by using the derivative at the first/last table
points if outside of the table scope.
(If smoothness is LinearSegments or ConstantSegments
this means to extrapolate linearly through the first/last
two table points.).
= 3: Periodically repeat the table data (periodical function).
= 4: No extrapolation, i.e. extrapolation triggers an error
</pre></blockquote></li>
<li>If the table has only <strong>one element</strong>, the table value is returned,
independent of the value of the input signal.</li>
<li>The grid values (first column and first row) have to be strictly
increasing.</li>
</ul>
<p>
The table matrix can be defined in the following ways:
</p>
<ol>
<li>Explicitly supplied as <strong>parameter matrix</strong> \"table\",
and the other parameters have the following values:
<blockquote><pre>
tableName is \"NoName\" or has only blanks,
fileName is \"NoName\" or has only blanks.
</pre></blockquote></li>
<li><strong>Read</strong> from a <strong>file</strong> \"fileName\" where the matrix is stored as
\"tableName\". Both text and MATLAB MAT-file format is possible.
(The text format is described below).
The MAT-file format comes in four different versions: v4, v6, v7 and v7.3.
The library supports at least v4, v6 and v7 whereas v7.3 is optional.
It is most convenient to generate the MAT-file from FreeMat or MATLAB®
by command
<blockquote><pre>
save tables.mat tab1 tab2 tab3
</pre></blockquote>
or Scilab by command
<blockquote><pre>
savematfile tables.mat tab1 tab2 tab3
</pre></blockquote>
when the three tables tab1, tab2, tab3 should be used from the model.<br>
Note, a fileName can be defined as URI by using the helper function
<a href=\"modelica://Modelica.Utilities.Files.loadResource\">loadResource</a>.</li>
<li>Statically stored in function \"usertab\" in file \"usertab.c\".
The matrix is identified by \"tableName\". Parameter
fileName = \"NoName\" or has only blanks. Row-wise storage is always to be
preferred as otherwise the table is reallocated and transposed.
See the <a href=\"modelica://Modelica.Blocks.Tables\">Tables</a> package
documentation for more details.</li>
</ol>
<p>
When the constant \"NO_FILE_SYSTEM\" is defined, all file I/O related parts of the
source code are removed by the C-preprocessor, such that no access to files takes place.
</p>
<p>
If tables are read from a text file, the file needs to have the
following structure (\"-----\" is not part of the file content):
</p>
<blockquote><pre>
-----------------------------------------------------
#1
double table2D_1(3,4) # comment line
0.0 1.0 2.0 3.0 # u[2] grid points
1.0 1.0 3.0 5.0
2.0 2.0 4.0 6.0
double table2D_2(4,4) # comment line
0.0 1.0 2.0 3.0 # u[2] grid points
1.0 1.0 3.0 5.0
2.0 2.0 4.0 6.0
3.0 3.0 5.0 7.0
-----------------------------------------------------
</pre></blockquote>
<p>
Note, that the first two characters in the file need to be
\"#1\" (a line comment defining the version number of the file format).
Afterwards, the corresponding matrix has to be declared
with type (= \"double\" or \"float\"), name and actual dimensions.
Finally, in successive rows of the file, the elements of the matrix
have to be given. The elements have to be provided as a sequence of
numbers in row-wise order (therefore a matrix row can span several
lines in the file and need not start at the beginning of a line).
Numbers have to be given according to C syntax (such as 2.3, -2, +2.e4).
Number separators are spaces, tab (\\t), comma (,), or semicolon (;).
Several matrices may be defined one after another. Line comments start
with the hash symbol (#) and can appear everywhere.
Text files should either be ASCII or UTF-8 encoded, where UTF-8 encoded strings are only allowed in line comments and an optional UTF-8 BOM at the start of the text file is ignored.
Other characters, like trailing non comments, are not allowed in the file.
The matrix elements are interpreted in exactly the same way
as if the matrix is given as a parameter. For example, the first
column \"table2D_1[2:,1]\" contains the u[1] grid points,
and the first row \"table2D_1[1,2:]\" contains the u[2] grid points.
</p>
<p>
MATLAB is a registered trademark of The MathWorks, Inc.
</p>
</html>"));
end CombiTable2Dv;
package Internal "Internal external object definitions for table functions that should not be directly utilized by the user"
extends Modelica.Icons.InternalPackage;
partial block CombiTable2DBase "Base class for variants of table look-up in two dimensions"
parameter Boolean tableOnFile=false
"= true, if table is defined on file or in function usertab"
annotation (Dialog(group="Table data definition"));
parameter Real table[:, :] = fill(0.0, 0, 2)
"Table matrix (grid u1 = first column, grid u2 = first row; e.g., table=[0, 0; 0, 1])"
annotation (Dialog(group="Table data definition",enable=not tableOnFile));
parameter String tableName="NoName"
"Table name on file or in function usertab (see docu)"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter String fileName="NoName" "File where matrix is stored"
annotation (Dialog(
group="Table data definition",
enable=tableOnFile,
loadSelector(filter="Text files (*.txt);;MATLAB MAT-files (*.mat)",
caption="Open file in which table is present")));
parameter Boolean verboseRead=true
"= true, if info message that file is loading is to be printed"
annotation (Dialog(group="Table data definition",enable=tableOnFile));
parameter Modelica.Blocks.Types.Smoothness smoothness=Modelica.Blocks.Types.Smoothness.LinearSegments
"Smoothness of table interpolation"
annotation (Dialog(group="Table data interpretation"));
parameter Modelica.Blocks.Types.Extrapolation extrapolation=Modelica.Blocks.Types.Extrapolation.LastTwoPoints
"Extrapolation of data outside the definition range"
annotation (Dialog(group="Table data interpretation"));
parameter Boolean verboseExtrapolation=false
"= true, if warning messages are to be printed if table input is outside the definition range"
annotation (Dialog(group="Table data interpretation", enable=extrapolation == Modelica.Blocks.Types.Extrapolation.LastTwoPoints or extrapolation == Modelica.Blocks.Types.Extrapolation.HoldLastPoint));
final parameter Real u_min[2]=getTable2DAbscissaUmin(tableID)
"Minimum abscissa value defined in table";
final parameter Real u_max[2]=getTable2DAbscissaUmax(tableID)
"Maximum abscissa value defined in table";
protected
parameter Modelica.Blocks.Types.ExternalCombiTable2D tableID=
Modelica.Blocks.Types.ExternalCombiTable2D(
if tableOnFile then tableName else "NoName",
if tableOnFile and fileName <> "NoName" and not Modelica.Utilities.Strings.isEmpty(fileName) then fileName else "NoName",
table,
smoothness,
extrapolation,
if tableOnFile then verboseRead else false) "External table object";
equation
if tableOnFile then
assert(tableName <> "NoName",
"tableOnFile = true and no table name given");
else
assert(size(table, 1) > 0 and size(table, 2) > 0,
"tableOnFile = false and parameter table is an empty matrix");
end if;
annotation(Icon(
coordinateSystem(preserveAspectRatio=true,
extent={{-100.0,-100.0},{100.0,100.0}}),
graphics={
Line(points={{-60.0,40.0},{-60.0,-40.0},{60.0,-40.0},{60.0,40.0},{30.0,40.0},{30.0,-40.0},{-30.0,-40.0},{-30.0,40.0},{-60.0,40.0},{-60.0,20.0},{60.0,20.0},{60.0,0.0},{-60.0,0.0},{-60.0,-20.0},{60.0,-20.0},{60.0,-40.0},{-60.0,-40.0},{-60.0,40.0},{60.0,40.0},{60.0,-40.0}}),
Line(points={{0.0,40.0},{0.0,-40.0}}),
Line(points={{-60.0,40.0},{-30.0,20.0}}),
Line(points={{-30.0,40.0},{-60.0,20.0}}),
Rectangle(origin={2.3077,-0.0},
fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-62.3077,0.0},{-32.3077,20.0}}),
Rectangle(origin={2.3077,-0.0},
fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-62.3077,-20.0},{-32.3077,0.0}}),
Rectangle(origin={2.3077,-0.0},
fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-62.3077,-40.0},{-32.3077,-20.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{-30.0,20.0},{0.0,40.0}}),
Rectangle(fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{0.0,20.0},{30.0,40.0}}),
Rectangle(origin={-2.3077,-0.0},
fillColor={255,215,136},
fillPattern=FillPattern.Solid,
extent={{32.3077,20.0},{62.3077,40.0}})}),
Diagram(coordinateSystem(preserveAspectRatio=true, extent={{-100,-100},{
100,100}})));
end CombiTable2DBase;
impure function readTimeTableData "Read table data from text or MATLAB MAT-file"
extends Modelica.Icons.Function;
input Modelica.Blocks.Types.ExternalCombiTimeTable tableID "External table object";
input Boolean forceRead = false
"= true: Force reading of table data; = false: Only read, if not yet read.";
output Real readSuccess "Table read success";
input Boolean verboseRead = true
"= true: Print info message; = false: No info message";
external"C" readSuccess = ModelicaStandardTables_CombiTimeTable_read(tableID, forceRead, verboseRead)
annotation (Library={"ModelicaStandardTables", "ModelicaIO", "ModelicaMatIO", "zlib"});
end readTimeTableData;
function getTimeTableValue
"Interpolate 1-dim. table where first column is time"
extends Modelica.Icons.Function;
input Modelica.Blocks.Types.ExternalCombiTimeTable tableID "External table object";
input Integer icol "Column number";
input Real timeIn "(Scaled) time value";
discrete input Real nextTimeEvent "(Scaled) next time event in table";
discrete input Real pre_nextTimeEvent "Pre-value of (scaled) next time event in table";
output Real y "Interpolated value";
external"C" y = ModelicaStandardTables_CombiTimeTable_getValue(tableID, icol, timeIn, nextTimeEvent, pre_nextTimeEvent)
annotation (Library={"ModelicaStandardTables", "ModelicaIO", "ModelicaMatIO", "zlib"});
annotation (derivative(
noDerivative=nextTimeEvent,
noDerivative=pre_nextTimeEvent) = getDerTimeTableValue);
end getTimeTableValue;
function getTimeTableValueNoDer
"Interpolate 1-dim. table where first column is time (but do not provide a derivative function)"
extends Modelica.Icons.Function;
input Modelica.Blocks.Types.ExternalCombiTimeTable tableID "External table object";
input Integer icol "Column number";
input Real timeIn "(Scaled) time value";
discrete input Real nextTimeEvent "(Scaled) next time event in table";
discrete input Real pre_nextTimeEvent "Pre-value of (scaled) next time event in table";
output Real y "Interpolated value";
external"C" y = ModelicaStandardTables_CombiTimeTable_getValue(tableID, icol, timeIn, nextTimeEvent, pre_nextTimeEvent)
annotation (Library={"ModelicaStandardTables", "ModelicaIO", "ModelicaMatIO", "zlib"});
end getTimeTableValueNoDer;
function getTimeTableValueNoDer2
"Interpolate 1-dim. table where first column is time (but do not provide a second derivative function)"