![]() ![]() You can also specify the reference system directly which will import and project your image in one streamlined step. Here you can specify the *.shp located in you resource or working folder that you wish to import. To import *.shp files into IDRISI there is a conversion tool found in Files> Import> Software Specific Formats> SHAPEIDR. Once the conversion is complete you will see your *.rst file in your working folder. Choose you *.img file and give it an output name. Go to File> Import> Software Specific Files> ERDAS. Moving to the IDRISI environment, set that folder where the *.img file is stored as your resource folder and the folder you want to be storing your working data in as your working folder. Now in the folder you specified for the output location you should have a *.img file. Select any other settings that are necessary for your file. Here specify the format for the image to be exported as *.img. To accomplish this export function in the ArcGIS environment, right click the grid file and select Data> Export Data. One would use the ‘Raster to ASCII’ tool in ArcGIS to generate an ASCII file from the Arc grid image, and then import into IDRISI with the ARCRASTER importing tool- specifying the ‘ArcInfo ASCII to Raster’ setting.Īlternatively you can opt to export the Arc grid file as an ERDAS Imagine file (*.img) and subsequently import that file into IDRISI. Raster Conversion from ArcGIS into IDRISIĪgain there are multiple ways to accomplish this task, one of the simplest being a reversal of the protocol outlined above in which a raster image was converted to ASCII and that ASCII file was imported into ArcGIS. Once this module is finished, you will see your raster image in a usable format for ArcGIS. Here you will input the *.txt file that was created in IDRISI and specify an output name. ![]() Moving to the ArcGIS side, open your toolbox and search for the conversion tool ‘ASCII to Raster’. You should now see a text file that was created in your working folder, representing your dataset. Here you will input the *.rst file you wish to convert, indicate an output name and press ok. To convert out of IDRISI and into ArcGIS using the ArcInfo ASCII conversion you will go to Files> Export> Software Specific Formats> ERSI> ARCRASTER. ![]() All of these conversion tools are located in the Files> Export section of the toolbar in IDRISI. To perform this task you can do one of the following export the *.rst file as an ArcInfo ASCII file, ArcInfo binary file, an Erdas Imagine file or a Geotiff file. Users simply can either choose the raster file in the ArcGIS using the ‘Add Data’ tool or drag and drop the file from ArcCatalog into the ArcGIS 10 workspace.Ī conversion will have to take place such that the *.rst file much be converted into a readable format for display. Raster Conversion from IDRISI into ArcGISĬurrently with the new release of ArcGIS 10 users can now open IDRISI raster files (*.rst) without having to perform a file conversion. Below I have outlined some of the most common ways to import ArcGIS files into IDRISI for raster image processing. There is a number of ways to convert ArcGIS grid files and shapefiles into IDRISI raster and vector file formats. ![]()
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