35 lines
1.0 KiB
Go
35 lines
1.0 KiB
Go
package imageproc
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import (
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"time"
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"github.com/airbusgeo/godal"
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log "github.com/sirupsen/logrus"
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)
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func setGeoTransform(ds *godal.Dataset, topLeftX, topLeftY, width, height, resolution float64) {
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// 设置地理变换（假设左上角坐标为(0,0)，PAN每个像素分辨率为1.2米）
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geotransform := [6]float64{
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0, // top left x
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resolution, // w-e pixel resolution
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0, // rotation, 0 if image is "north up"
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0, // top left y
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0, // rotation, 0 if image is "north up"
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-resolution, // n-s pixel resolution (negative value)
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}
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err := ds.SetGeoTransform(geotransform)
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if err != nil {
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log.Errorf("Failed to set GeoTransform: %v", err)
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}
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// 设置投影信息（WGS84）
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err = ds.SetProjection(calculateProj(topLeftX, topLeftY, width, height, resolution))
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if err != nil {
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log.Errorf("Failed to set projection: %v", err)
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}
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// 设置一些常见的元数据（可选）
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ds.SetMetadata("TIFFTAG_DATETIME", time.Now().String())
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ds.SetMetadata("TIFFTAG_SOFTWARE", "StarWiz-SJY01-IMAGE-PROC")
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}
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