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/**
* 根据面积限制,分割几何
*
* @param geometryList 几何列表
* @return {@link List}<{@link Geometry}>
*/
private List<Geometry> splitGeometryByArea(List<Geometry> geometryList, double maxArea) {
// 判断拆是否有面积大于规定的几何
boolean anyMatch = geometryList.stream().anyMatch(p -> this.baseMapper.calculateArea(p) * 0.0015 > maxArea);
// 没有面积大于规定的几何,则直接返回
if (!anyMatch) {
return geometryList;
}
for (int i = 0; i < geometryList.size(); i++) {
Geometry geometry = geometryList.get(i);
Double area = this.baseMapper.calculateArea(geometry);
if (area * 0.0015 > runnerConfig.getSplitMaxArea()) {
// 获取外包矩形
Envelope envelope = geometry.getEnvelopeInternal();
double height = envelope.getHeight();
double width = envelope.getWidth();
double minX = envelope.getMinX();
double maxX = envelope.getMaxX();
double minY = envelope.getMinY();
double maxY = envelope.getMaxY();
if (height >= width) {
splitByHeight(geometryList, i, minX, maxX, minY, maxY, height, width);
} else {
splitByWidth(geometryList, i, minX, maxX, minY, maxY, height, width);
}
i--;
}
}
return geometryList;
}
/**
* 在垂直方向进行分割
*
* @param geometryList 几何列表
* @param i 我
* @param minX 风骚女子
* @param maxX maxx
* @param minY 如矿坑
* @param maxY maxy
* @param height 高度
* @param width 宽度
*/
private void splitByHeight(List<Geometry> geometryList, int i,
double minX, double maxX, double minY, double maxY,
double height, double width) {
double h_divide_w = height / width;
double count = Math.ceil(h_divide_w);
count = count < 2 ? 2 : count;
Geometry remove = geometryList.remove(i);
for (int n = 0; n < count; n++) {
double y1 = maxY * n / count + minY * (count - n) / count;
double y2 = maxY * (n + 1) / count + minY * (count - n - 1) / count;
Envelope tempEnvelope = new Envelope(minX, maxX, y1, y2);
Geometry tempGeom = JTS.toGeometry(tempEnvelope).intersection(remove);
geometryList.add(tempGeom);
}
}
/**
* 在水平方向上进行分割
*
* @param geometryList 几何列表
* @param i 我
* @param minX 风骚女子
* @param maxX maxx
* @param minY 如矿坑
* @param maxY maxy
* @param height 高度
* @param width 宽度
*/
private void splitByWidth(List<Geometry> geometryList, int i,
double minX, double maxX, double minY, double maxY,
double height, double width) {
double w_divide_h = width / height;
double count = Math.ceil(w_divide_h);
count = count < 2 ? 2 : count;
Geometry remove = geometryList.remove(i);
for (int n = 0; n < count; n++) {
double x1 = maxX * i / count + minX * (count - i) / count;
double x2 = maxX * (i + 1) / count + minX * (count - i - 1) / count;
Envelope tempEnvelope = new Envelope(x1, x2, minY, maxY);
Geometry tempGeom = JTS.toGeometry(tempEnvelope).intersection(remove);
geometryList.add(tempGeom);
}
}
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