arcpy27中如何把shp导出kmz后设置颜色和标注属性
时间: 2024-12-02 14:17:03 浏览: 17
arcpy按属性导出shp.zip
在ArcGIS Pro 27版本中,使用Python模块`arcpy`操作Shapefile并将其转换为KMZ文件,同时设置要素的颜色和标签属性,可以按照以下步骤进行:
1. **导入所需的库**:
```python
import arcpy
from zipfile import ZipFile
```
2. **加载Shapefile数据**:
```python
input_shp = "path_to_your_shapefile.shp"
shp_layer = arcpy.mp.ArcGISProject("CURRENT").listLayers(input_shp)[0]
```
3. **获取要素特性和颜色/标签信息**:
```python
def get_style_element(feature):
# 假设你已经有了用于设置颜色和标签的字段名
color_field = "ColorField" # 替换为你实际的颜色字段
label_field = "LabelField" # 替换为你实际的标签字段
feature_color = feature.getPart(0).attributeValues[color_field]
feature_label = feature.getPart(0).attributeValues[label_field]
return {"color": feature_color, "label": feature_label}
style_elements = [get_style_element(feat) for feat in shp_layer.getFeatures()]
```
4. **创建KML文件**:
```python
kml_filename = "output_kmz.kmz"
with ZipFile(kml_filename, 'w') as kmz_file:
# 创建KML文档
doc = """<?xml version="1.0" encoding="UTF-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<!-- 添加Style元素来应用颜色和标签 -->
%s
</Document>
</kml>""" % "\n".join([f'<Style id="{i}"><IconStyle><color>{se["color"]}</color><Icon><href>#{i}</href></Icon></IconStyle><LabelStyle><text>${{name}}</text><color>{se["color"]}</color></LabelStyle></Style>' for i, se in enumerate(style_elements)])
kmz_file.writestr('doc.kml', doc)
# 将每个要素添加到KML文件中
for feat, se in zip(shp_layer.getFeatures(), style_elements):
# 使用要素ID作为图标链接
icon_href = f'#{len(style_elements)}'
placemark = f"""
<Placemark>
<name>{feat.name}</name>
<styleUrl>#{int(se["id"])}</styleUrl>
<Point>
<coordinates>{feat.geometry.X},{feat.geometry.Y},0</coordinates>
</Point>
</Placemark>
"""
kmz_file.writestr(f'ref_{icon_href}.png', feat.shape.__geo_interface__["coordinates"][::-1]) # 图标路径,这里假设是地理坐标
kmz_file.writestr(placemark)
```
5. **完成转换**:
转换完成后,关闭ZipFile。
注意:这个示例假设你有颜色和标签字段,并且可以将要素的几何坐标转换为PNG图片保存为图标。如果直接使用地理坐标,可能需要额外处理。
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