The image on the left below is a raster image, and the image on the right is the display result after being converted into a surface:
Convert raster data into polylines.
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When converting a raster dataset containing linear features, a polyline is created based on each cell in the input raster dataset. Position the polyline so that it passes through the center of each pixel. NoData cells in the input raster dataset are not converted to features in the output.
The image on the left below is a raster image, and the image on the right is the display result after being converted into a polyline element:
Convert raster data to points
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When converting a raster dataset containing point features, each cell in the input raster dataset is converted to a point in the output. Each newly generated point is located at the center of the pixel it represents. NoData cells are not converted to points.
The image on the left below is a raster image, and the image on the right is the display result after being converted into point elements:
Store raster data in a geodatabase.
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To store a raster dataset in a file geodatabase, a personal geodatabase, or an ArcSDE geodatabase, you must convert the raster dataset. You can convert any raster format that ArcGIS can recognize.
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Convert raster data to other file types
You can also convert raster datasets to other file types. Typically, these files only hold the values of raster datasets. Files containing ASCII values or floating-point values are typical examples of such files.
An ASCII file consists of header information containing a set of keywords, followed by pixel values arranged in line order. The information of ASCII file is saved in a text file.
Raster to ASCII code
Floating-point files are similar to ASCII files, but they contain floating-point values. Floating-point values are values with decimal precision. These values can be positive or negative. Floating-point files are stored in 32-bit signed binary files.
Raster to floating point