[Bug] echarts-gl: error when displaying a simple surface

[Hirnochse]

Version

5.4.3

Link to Minimal Reproduction

Steps to Reproduce

This is the code I use to display a rectangular plain surface :

option = {
tooltip: {},
backgroundColor: '#fff',
xAxis3D: {
type: 'value'
},
yAxis3D: {
type: 'value',
min: 0,
max: 6
},
zAxis3D: {
type: 'value'
},
grid3D: {
viewControl: {
projection: 'orthographic'
}
},
series: [
{
type: 'surface',
wireframe: {
// show: false
},
data:
[
[0, 3, -8],[0, 3, -7], [0, 3, -6], [0, 3, -5], [0, 3, -4], [0, 3, -3], [0, 3, -2], [0, 3, -1],
[15, 3, -8],[15, 3, -7],[15, 3, -6], [15, 3, -5], [15, 3, -4], [15, 3, -3], [15, 3, -2], [15, 3, -1],
]
}
]
};

Current Behavior

This is the result I get:

Expected Behavior

When I edit the data-series to:

  [0, 3, -7], [0, 3, -6], [0, 3, -5], [0, 3, -4], [0, 3, -3], [0, 3, -2], [0, 3, -1],
  [15, 3, -7],[15, 3, -6], [15, 3, -5], [15, 3, -4], [15, 3, -3], [15, 3, -2], [15, 3, -1],

I get a correct rectangular surface:

All I did was deleting the first data in each row:
[0, 3, -8],
[15, 3, -8],

Environment

You can reproduce the issue by pasting the code into the "examples" page on
https://echarts.apache.org/

Any additional comments?

Is there any further documentation I overlooked?

[helgasoft]

not-a-bug
This is about coordinate ordering: X values need to change first, then Y values. As shown in surface.data example.
Demo Code

📌 please close issue if problem solved.

[Hirnochse]

Many thanks for the quick reply and the detailed demo code! I was able to solve the problem in my code with your help.

I had read the series-suface.data example before. However, since I am not dealing with a surface parallel to the X/Y axis - as in the example - but with a surface parallel to the Y/Z axis, I could not use the series-suface.data example exactly. I must have mixed up the required order of the X and Y values.

It would be nice if the documentation for this could be a bit more detailed. The required sequence is not described there in text form, but has to be guessed from the sample data.