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全球等高线忽略小于0的高度

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zh
2025-07-14 09:27:46 +08:00
parent c843b025fc
commit 2db5eafabf
2 changed files with 10 additions and 3 deletions
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9
src/Global/Contour/index.js
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@ -111,7 +111,7 @@ async function dialog(sdk) {
if (e.target.checked) { if (e.target.checked) {
show = true show = true
let height = sdk.viewer.camera.positionCartographic.height let height = sdk.viewer.camera.positionCartographic.height
if(height>16360) { if (height > 16360) {
let cartographic = sdk.viewer.camera.positionCartographic let cartographic = sdk.viewer.camera.positionCartographic
let options = { let options = {
position: { position: {
@ -413,6 +413,9 @@ function showContour(sdk) {
let gap = pos84.alt - mainContourHeight let gap = pos84.alt - mainContourHeight
let gap2 = material.uniforms.spacing / (material.uniforms.secondaryLinesCount + 1) let gap2 = material.uniforms.spacing / (material.uniforms.secondaryLinesCount + 1)
let activeHeight = Math.floor(gap / gap2) * gap2 + mainContourHeight let activeHeight = Math.floor(gap / gap2) * gap2 + mainContourHeight
if (pos84.alt < 0) {
pos84.alt = 0
}
if ((pos84.alt - activeHeight) > gap2 / 2) { if ((pos84.alt - activeHeight) > gap2 / 2) {
activeHeight = activeHeight + gap2 activeHeight = activeHeight + gap2
} }
@ -581,6 +584,10 @@ czm_material czm_getMaterial(czm_materialInput materialInput)
outColor = vec4(0.0); outColor = vec4(0.0);
} }
if(materialInput.height<0.0) {
outColor = vec4(0.0);
}
material.diffuse = outColor.rgb; material.diffuse = outColor.rgb;
material.alpha = outColor.a; material.alpha = outColor.a;
return material; return material;

4
src/Tools/index.js
View File

@ -123,8 +123,8 @@ class Tools {
var cartographic = ellipsoid.cartesianToCartographic(cartesian3) var cartographic = ellipsoid.cartesianToCartographic(cartesian3)
var lat = Cesium.Math.toDegrees(cartographic.latitude) var lat = Cesium.Math.toDegrees(cartographic.latitude)
var lng = Cesium.Math.toDegrees(cartographic.longitude) var lng = Cesium.Math.toDegrees(cartographic.longitude)
// var alt = cartographic.height < 0 ? 0 : cartographic.height var alt = cartographic.height < 0 ? 0 : cartographic.height
var alt = cartographic.height // var alt = cartographic.height
return { return {
lng: lng, lng: lng,
lat: lat, lat: lat,