ArcGIS cuts TIF images (grid data) according to the vector range, merges shp files in batches, cuts vectors in the region according to the vector range, outputs the geographic coordinate system, conve

1、 According to vector data （shp） Crop image (tif)

Select the study area , Beautiful drawing .
This is the original vector file , Now the vector file of Yunnan Guizhou Sichuan region is cut , By directly editing the original vector file .



Now we need to cut out the yunguichuan area from the above picture .

After opening the dialog box, enter the image and crop area , If you only need to crop the vector region , Be sure to check the red box .

give the result as follows ：

If I don't check it , The result is a rectangle containing the target area , as follows ：

There is also a place for vector cutting ：


It involves the coordinate system inheritance point red box option .

2、 Batch consolidation shp file ：

3、 Vector graph separation with vector boundaries

According to the internal properties of vector graph ( With boundary vector ) Segmentation , Get the attribute region vector graph .

4、 Keep the geographic coordinate system :

Sometimes vector graphics shp It includes both projection coordinates , It also contains geographical coordinates , After some map software is opened , The contents of the vector graph cannot be read , Personal experience is to delete projection coordinates , Keep the geographical coordinates to use , Or because of the lack of geographical coordinates, it cannot be displayed , Add the corresponding geographical coordinates ( Commonly used WGS1984), Can use vector graph .

5、 Merge multiple vectors with boundaries to remove internal boundaries

Open the editor , Select the shp file
Right click shp file , Open the property sheet , Select merge elements
Open the editor , Select merge （merge）

Complete the above , You can get the whole vector without boundary inside

6、 Layer coordinate system problem ：

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7、 About conversion TIF Image from 16 A to 8 position （ Pixel depth ） Methods ：

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Recently generated by direct processing TIF Image is 16 Bit , Demand is 8 Bit , Because the number of images is not much , So in ARCMAP Up conversion , Although it was successful in the end , But during this period, I also encountered some problems , For now, let's remember , For future reference ：
① The input is pixel depth 16 Bit tif image
② Tools are data management tools - grid - Raster data sets - Mosaic to new grid , The English interface is as follows ：

The focus is on the operation bar , I've been stuck in the save path , The reason is that I click in the folder used to save , The result always indicates that there is already , Then save the file name , If you don't add tif suffix , Files with folders will be generated , Cannot directly generate images .
The correct operation is shown on the following page ：

Set as above , You can click “OK” It's time to switch

8、shp File creation and vector box plotting settings

Most of the time, we deal with what others give shp data , But there are also many times when we need personalized creation shp Documents to complete the work efficiently .
shp File creation is generally new 、 Add projection and other operations , Make sure you create shp Editable and available
① open arcmap The window of - Catalog , As shown below , Locate yourself and create shp Under the folder path of

② Right click to create shp Folder , Click on newshapefile


Here is a problem ：acgis Cannot create element , Invalid geometry
Originally I had one tif Mark on it , So I created a shp, Open edit start annotation , As a result, the element cannot be created , The problem of geometric invalidity ,

The latter solution is to re create a shp file , Added projection coordinate system , It can be marked on it

But this problem may not always appear , I created it on another computer below shp You can edit it directly without adding a projection coordinate system , draw polygon

Add the projection coordinate system as follows ：


Annotation method


annotation format , For example, a square with a fixed size , Horizontal annotation, etc , The method is as follows , Where the size is in pixels