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[mvt] mapbox vector tiles conversion improvements #58154

Merged
merged 9 commits into from
Jul 24, 2024
Merged

[mvt] mapbox vector tiles conversion improvements #58154

merged 9 commits into from
Jul 24, 2024

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3nids
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@3nids 3nids commented Jul 17, 2024 •
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  • fix brush when color is data defined
  • fix match expression when single values are used
  • fix stops are open on both ends

from this style (https://vectortiles.geo.admin.ch/styles/ch.swisstopo.lightbasemap.vt/style.json):

     "paint": {
        "fill-color": [
          "match",
          [
            "get",
            "luminosity"
          ],
          -15,
          "rgb(200,210,213)",
          -14,
          "rgb(203,213,216)",
          -13,
          "rgb(207,215,218)",
          -12,
          "rgb(210,218,221)",
          -11,
          "rgb(213,221,224)",
          -10,
          "rgb(217,224,226)",
          -9,
          "rgb(220,227,229)",
          -8,
          "rgb(224,230,231)",
          -7,
          "rgb(227,232,234)",
          -6,
          "rgb(231,235,237)",
          -5,
          "rgb(234,238,239)",
          -4,
          "rgb(238,241,242)",
          -3,
          "rgb(241,244,245)",
          -2,
          "rgb(245,247,247)",
          -1,
          "rgb(248,249,250)",
          "rgb(252, 252, 252)"
        ],

@github-actions github-actions bot added this to the 3.40.0 milestone Jul 17, 2024
@3nids 3nids requested a review from nyalldawson July 17, 2024 13:51
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github-actions bot commented Jul 17, 2024 •
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🪟 Windows builds ready!

Windows builds of this PR are available for testing here. Debug symbols for this build are available here.

(Built from commit 98924d7)

@3nids 3nids changed the title [mvt] fix brush when color is data defined [mvt] fix brush when color is data defined and match expression Jul 17, 2024
nyalldawson
nyalldawson reviewed Jul 17, 2024
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src/core/vectortile/qgsmapboxglstyleconverter.cpp
@@ -453,7 +456,7 @@ bool QgsMapBoxGlStyleConverter::parseFillLayer( const QVariantMap &jsonLayer, Qg
fillSymbol->setStrokeStyle( Qt::NoPen );
}

if ( fillColor.isValid() )
if ( fillColor.isValid() || colorIsDataDefined )
{
fillSymbol->setFillColor( fillColor );
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If fillColor isn't valid, then we'll be setting the fill symbol to an invalid QColor here... I don't think we want to do that!

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What would you do? Move the check and do an else if?

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Can you explain what it's trying to do here? I think ideally it'd be set to eg the first colour in the list

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I'm just trying to avoid to set "no brush" if it's data defined. So not setting it might be sufficient.

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Can you add tests for this?

@3nids 3nids force-pushed the 3nids-patch-1 branch 2 times, most recently from f716a9a to 6b078b8 Compare July 20, 2024 15:09
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3nids commented Jul 22, 2024

tests added

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3nids commented Jul 23, 2024

@nirvn last commit 0c0b085 is a fix on parseArrayStops which you were over some time ago

@3nids 3nids changed the title [mvt] fix brush when color is data defined and match expression [mvt] mapbox vector tiles conversion improvements Jul 24, 2024
3nids and others added 3 commits July 24, 2024 11:32
@3nids @nirvn
set transparent color as fallback
8848616 
Co-authored-by: Mathieu Pellerin <nirvn.asia@gmail.com>
@3nids
test for colors
8547fa5
@3nids
add tolerance
98924d7
nirvn
nirvn approved these changes Jul 24, 2024
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This looks good to me.

@3nids 3nids merged commit 398b151 into master Jul 24, 2024
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@3nids 3nids deleted the 3nids-patch-1 branch July 24, 2024 13:18
@qgis-bot qgis-bot mentioned this pull request Jul 24, 2024
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@nyalldawson nyalldawson nyalldawson left review comments

@nirvn nirvn nirvn approved these changes

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