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Less declutter flicker by respecting renderBuffer

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This commit is contained in:
Andreas Hocevar
2020-06-07 22:05:15 +02:00
parent 35fdcb9565
commit 0f9de15448
2 changed files with 14 additions and 7 deletions
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16
src/ol/render/canvas/Executor.js
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@@ -69,8 +69,9 @@ class Executor {
* @param {number} pixelRatio Pixel ratio.
* @param {boolean} overlaps The replay can have overlapping geometries.
* @param {SerializableInstructions} instructions The serializable instructions
* @param {number} renderBuffer Render buffer in pixels.
*/
constructor(resolution, pixelRatio, overlaps, instructions) {
constructor(resolution, pixelRatio, overlaps, instructions, renderBuffer) {
/**
* @protected
* @type {boolean}
@@ -119,6 +120,8 @@ class Executor {
*/
this.coordinateCache_ = {};
this.renderBuffer_ = renderBuffer;
/**
* @private
* @type {!import("../../transform.js").Transform}
@@ -401,11 +404,14 @@ class Executor {
const strokePadding = strokeInstruction
? (strokeInstruction[2] * scale) / 2
: 0;
const renderBuffer = this.renderBuffer_;
const intersects =
tmpExtent[0] - strokePadding <= canvas.width / contextScale &&
tmpExtent[2] + strokePadding >= 0 &&
tmpExtent[1] - strokePadding <= canvas.height / contextScale &&
tmpExtent[3] + strokePadding >= 0;
tmpExtent[0] - strokePadding <=
(canvas.width + renderBuffer) / contextScale &&
tmpExtent[2] + strokePadding >= -renderBuffer / contextScale &&
tmpExtent[1] - strokePadding <=
(canvas.height + renderBuffer) / contextScale &&
tmpExtent[3] + strokePadding >= -renderBuffer / contextScale;
if (snapToPixel) {
x = Math.round(x);