1. A concise explanation of the problem you’re experiencing.
I use canvas as txture material ,but can’t show ,i use png picture will work.
2. A minimal code example. If you’ve found a bug, this helps us reproduce and repair it.
var canvas = document.getElementById(‘canvas’);
var ctx = canvas.getContext(‘2d’);
ctx.beginPath();
ctx.moveTo(0, 0);
ctx.lineTo(300, 150);
ctx.stroke();
var czml = [{
“id”: “document”,
“name”: “CZML WALL”,
“version”: “1.0”
}, {
“id”: “wall”,
“wall”: {
“positions”: {
“cartographicDegrees”: [-115.0, 50.0, 10000000, -112.5, 50.0, 10000000
]
},
“material”: {
“image”: {
“image”: {
“uri”: canvas.toDataURL(),
},
//“image”: { “uri”: ‘./SampleData/004.png’ } ,
“color”: {
“rgba”: [255, 255, 255, 150]
}
}
},
“fill”: true
}
}];
var dataSourcePromise = Cesium.CzmlDataSource.load(czml);
viewer.dataSources.add(dataSourcePromise);
3. Context. Why do you need to do this? We might know a better way to accomplish your goal.
I want show a ruler
4. The Cesium version you’re using, your operating system and browser.
cesium 1.45
os win10
browser google