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Introduce EMPTY image state to deal with images outside the view extent

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ahocevar
2019-07-26 13:00:35 +02:00
parent 1cc92b4751
commit 62d8760420
2 changed files with 3 additions and 5 deletions
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src/ol/ImageState.js
+2 -1
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@@ -9,5 +9,6 @@ export default {
IDLE: 0, IDLE: 0,
LOADING: 1, LOADING: 1,
LOADED: 2, LOADED: 2,
ERROR: 3 ERROR: 3,
EMPTY: 4
}; };
src/ol/reproj/Image.js
+1 -4
View File
@@ -51,10 +51,7 @@ class ReprojImage extends ImageBase {
const sourceExtent = triangulation.calculateSourceExtent(); const sourceExtent = triangulation.calculateSourceExtent();
const sourceImage = getImageFunction(sourceExtent, sourceResolution, pixelRatio); const sourceImage = getImageFunction(sourceExtent, sourceResolution, pixelRatio);
let state = ImageState.LOADED; const state = sourceImage ? ImageState.IDLE : ImageState.EMPTY;
if (sourceImage) {
state = ImageState.IDLE;
}
const sourcePixelRatio = sourceImage ? sourceImage.getPixelRatio() : 1; const sourcePixelRatio = sourceImage ? sourceImage.getPixelRatio() : 1;
super(targetExtent, targetResolution, sourcePixelRatio, state); super(targetExtent, targetResolution, sourcePixelRatio, state);