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@ -1695,12 +1695,6 @@ export default { |
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msaaSamples: 8 |
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}) |
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this.viewer.cesiumWidget.creditContainer.style.display = "none" |
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// 启用 FXAA 后处理，进一步减轻线条锯齿感 |
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try { |
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if (this.viewer.scene.postProcessStages && this.viewer.scene.postProcessStages.fxaa) { |
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this.viewer.scene.postProcessStages.fxaa.enabled = true |
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} |
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} catch (e) { /* 部分 Cesium 版本可能无此 API */ } |
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// 根据浏览器缩放比例提高渲染分辨率，减轻 80% 等缩放下线条锯齿 |
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this.applyResolutionScale() |
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this._resolutionScaleCleanup = this.setupResolutionScaleListener() |
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@ -3216,8 +3210,8 @@ export default { |
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// 5. 重置状态，保持绘制状态以继续绘制 |
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this.drawingPoints = []; |
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}, |
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// 生成圆形的点，用于绘制边框线（提高分段数以减轻锯齿） |
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generateCirclePositions(center, radius, numPoints = 256) { |
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// 生成圆形的点，用于绘制边框线 |
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generateCirclePositions(center, radius, numPoints = 192) { |
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const positions = []; |
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const ellipsoid = this.viewer.scene.globe.ellipsoid; |
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@ -3293,8 +3287,8 @@ export default { |
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} |
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// 确保角度差不为零 |
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angleDiff = Math.max(0.01, angleDiff); |
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// 计算扇形的顶点数（根据角度差确定，确保平滑；提高分段数以减轻锯齿） |
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const numPoints = Math.max(64, Math.ceil(angleDiff * 180 / Math.PI / 2)); |
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// 计算扇形的顶点数（根据角度差确定，确保平滑） |
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const numPoints = Math.max(16, Math.ceil(angleDiff * 180 / Math.PI / 3)); |
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const angleStep = angleDiff / (numPoints - 1); |
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// 生成扇形的顶点（顺时针方向） |
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for (let i = 0; i < numPoints; i++) { |
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@ -3808,8 +3802,8 @@ export default { |
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if (!this.viewer || !this.viewer.cesiumWidget) return |
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const vv = window.visualViewport |
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const scale = (vv && typeof vv.scale === 'number') ? vv.scale : 1 |
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// 始终使用至少 2.2 倍超采样，80% 缩放下再按比例提高（上限 2.5），显著减轻线条锯齿 |
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let resolutionScale = 2.2 |
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// 始终使用至少 2.0 倍超采样，80% 缩放下再按比例提高（上限 2.5），显著减轻锯齿 |
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let resolutionScale = 2.0 |
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if (scale > 0 && scale < 1) { |
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resolutionScale = Math.min(2.5, 1 / scale) |
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if (resolutionScale < 2.0) resolutionScale = 2.0 |
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@ -3840,8 +3834,8 @@ export default { |
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window.removeEventListener('resize', onResize) |
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} |
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}, |
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/** 按等经度/等纬度采样矩形边框，使在 2D 地图缩小时仍显示为直线（避免测地线弯弧）；分段数提高以减轻锯齿 */ |
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getRectangleBorderPositions(rect, segmentsPerEdge = 64) { |
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/** 按等经度/等纬度采样矩形边框，使在 2D 地图缩小时仍显示为直线（避免测地线弯弧） */ |
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getRectangleBorderPositions(rect, segmentsPerEdge = 48) { |
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const west = rect.west |
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const south = rect.south |
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const east = rect.east |
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@ -3866,8 +3860,8 @@ export default { |
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} |
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return positions |
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}, |
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/** 在 2D 墨卡托下将一段线采样为“直线”（避免测地线弯弧）；返回 Cartesian3 数组含起点到终点；分段数提高以减轻锯齿 */ |
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sampleSegmentStraightIn2D(cartesianA, cartesianB, numSegments = 64) { |
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/** 在 2D 墨卡托下将一段线采样为“直线”（避免测地线弯弧）；返回 Cartesian3 数组含起点到终点 */ |
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sampleSegmentStraightIn2D(cartesianA, cartesianB, numSegments = 32) { |
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const cgA = Cesium.Cartographic.fromCartesian(cartesianA) |
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const cgB = Cesium.Cartographic.fromCartesian(cartesianB) |
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const lonA = cgA.longitude |
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@ -3887,8 +3881,8 @@ export default { |
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} |
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return positions |
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}, |
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/** 将折线/多边形顶点按 2D 墨卡托“直线”采样，使缩放小时仍显示为直；closed 为 true 表示多边形闭合；分段数提高以减轻锯齿 */ |
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getPolylinePositionsStraightIn2D(positions, closed = false, segmentsPerEdge = 64) { |
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/** 将折线/多边形顶点按 2D 墨卡托“直线”采样，使缩放小时仍显示为直；closed 为 true 表示多边形闭合 */ |
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getPolylinePositionsStraightIn2D(positions, closed = false, segmentsPerEdge = 32) { |
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if (!positions || positions.length < 2) return positions |
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const n = positions.length |
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const result = [] |
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