Images produced by oblique photography , The terrain result data is easy to block in the following figure , The black edge problem , Irregular shape problem .
The last article introduced the black edge processing of data . This paper gives a brief introduction to merging and tailoring .
Faster data , Drag it all at once to globalmapper Inside .
Click on the menu and choose export grid or image .
Select the format as geotif.
If it's image data, set it up 24bit. If the terrain is set to 8bit.
Since it's consolidated data , Just choose to export all .
There are two forms of tailoring , One is direct rectangle clipping , The other is to cut according to the polygon .
Direct rectangle clipping ：
Rectangle clipping can be done directly , Draw a polygon when exporting . You can also type 4 The coordinates of the angles .
Drag and drop to draw a rectangle .
Vector polygon clipping method
Vector polygon can be directly drawn through the familiar third-party software or this software directly . Here we use ls v For example .
The same km l Drag and drop to add to the software .
First select the face feature that you want to use as the clipping range .
Then select the raster data object to be trimmed .
Click apply to finish
Remove element highlighting effect .