@antv/g-plugin-canvas-picker

A G plugin for picking in canvas

Last updated 3 years ago by panyuqi .

MIT · Repository · Bugs · Original npm

$ cnpm install @antv/g-plugin-canvas-picker

SYNC missed versions from official npm registry.

@antv/g-plugin-canvas-picker

基于 Canvas2D API 实现的拾取：

使用 R-Tree 空间索引查找拾取点命中的一系列图形包围盒
在这些图形中找到最顶层的一个图形，依据 z-index
使用数学计算精确判定是否命中该图形，例如 Circle 测算到圆心距离是否小于半径

该方案基于 CPU，因此优化点在于包围盒相交运算是否足够快。

Current Tags

1.8.39 ... latest (3 years ago)

5 Versions

1.8.39 ... 3 years ago
1.1.8-alpha.1 ... 3 years ago
1.8.5 ... 3 years ago
1.0.0-alpha.32 ... 4 years ago
1.0.5 ... 4 years ago

Maintainers (64)

zhangjunjie-loki

Downloads

Today 0

This Week 0

This Month 0

Last Day 0

Last Week 0

Last Month 0

Dependencies (4)

@antv/g-plugin-canvas-path-generator ^1.1.41
@antv/util ^3.3.1
gl-matrix ^3.1.0
tslib ^2.3.1

Dev Dependencies (1)

@types/jest ^25.0.0

Dependents (0)

None

Copyright 2013 - present © cnpmjs.org