ArcGIS JS API 路径回放

Posted 2023-05-04

参考技术A     最近维护老项目，有个路径回放的功能，写的比较复杂，现在只要比较简单就能做好，只要使用turf.js的lineChunk就可以了,愉快的结束本篇水文.

    以下都是水字数

    生成线段，使用turf.lineChunk跟据turf.length来分割成定长线段，计算线段的范围好缩放至线段附近

    使用定时器来j进行数据修改，通过不停的修改几何数据，当开始是绘制一个线段，后面修改几何插入新的线段，让人有种动画的感觉.

ArcGIS JS API 4.18

ArcGIS JS API 3.35

参考资料:

https://turfjs.fenxianglu.cn/category/misc/lineChunk.html

GIS-012-ArcGIS JS API 绘图

Name	Description
ARROW	Draws an arrow.
CIRCLE	Draws a circle.
DOWN_ARROW	Draws an arrow that points down.
ELLIPSE	Draws an ellipse.
EXTENT	Draws an extent box.
FREEHAND_POLYGON	Draws a freehand polygon.
FREEHAND_POLYLINE	Draws a freehand polyline.
LEFT_ARROW	Draws an arrow that points left.
LINE	Draws a line.
MULTI_POINT	Draws a Multipoint.
POINT	Draws a point.
POLYGON	Draws a polygon.
POLYLINE	Draws a polyline.
RECTANGLE	Draws a rectangle.
RIGHT_ARROW	Draws an arrow that points right.
TRIANGLE	Draws a triangle.
UP_ARROW	Draws an arrow that points up.