Varying transparency of symbols within single layer in ArcMap
Geographic Information SystemsHow do I change the transparency of a symbol in ArcMap? Change transparency through the layer menu Open the map in Map Viewer Classic. Click Details and click Contents. , click Transparency, and move the transparency slider to the left (less transparent) or right (more transparent). If you own the map, click Save to save
If/then with VBScript in ArcGIS Field Calculator giving Error 000539: SyntaxError: invalid syntax?
Geographic Information SystemsWhy is field calculator not working in ArcGIS? Additionally, the Field Calculator is disabled when the layer is not editable due to the following causes: The editing capabilities of the layer is not enabled. The layer type is non-editable in ArcGIS Pro. The table type is non-editable in ArcGIS Pro. How do you use the
Spatial join for adjacent polygons with same attributes
Geographic Information SystemsHow do you spatial join points to polygons? To begin making a spatial join between a polygon layer and a point layer, right click on the polygon layer in the table of contents, and choose Joins and Relates>Join. The join dialogue opens. Make sure that in the dropdown at the top you have chosen “Join
Standard Colors for Landcover Maps
Geographic Information SystemsWhich colours do you use to show land? Different colours are used to represent land use on a map. Agricultural land use is represented with Yellow colour. While blue is used for commercial, red is for residential and green is used for forest lands. What is the colour code for land? The different colors used
PostGIS ST_Intersection of polygons can return lines
Geographic Information SystemsWhat is the difference between ST_Overlaps and ST_Intersects? Use ST_Intersects to determine whether two geometries intersect. Use ST_Crosses to determine whether one geometry crosses another. Use ST_Overlaps to determine whether two geometries of the same dimension overlap. How does St_ intersection work? The ST_Intersection() function takes two ST_Geometry objects and returns the intersection set as
Seeking shapefiles of global climate/climatic zones
Geographic Information SystemsWhat are the 3 global climate zones? According to the three cell convection model of each hemisphere the Earth neatly separates itself into three distinct climate zones; the polar, temperate, and the tropical zones. What are the 5 climate zones? one of five classifications of the Earth’s climates: tropical, dry, mild, continental, and polar.
How to convert contours and raster surface from Petrel to shapefiles and rasters that can display in ArcGIS?
Geographic Information SystemsHow do I export a map from Petrel? Right click on the polygon in the Petrel navigation tree and select Export. How do I create a contour map in Arcgis? In order to create contours, you will need to enable the Spatial Analyst toolbar, which can be found by going to Customize > Toolbars >
Rasters not displaying correctly when opening from a project in QGIS
Geographic Information SystemsHow do I open a raster file in QGIS? Add a raster layer into QGIS Download your chosen data layer. Use the ‘+ map’ button to add your chosen raster dataset to your collection, and click Export. Extract your download to a new folder. Open Quantum GIS (QGIS) Select Add Raster Layer. Zoom to your
Arcmap – add an image to a legend that is not part of layer symbology
Geographic Information SystemsHow to hide a map item in the ArcMap map legend but maintain the symbol on the map? How To: Hide a map item in the ArcMap map legend but maintain the symbol on the map In the Layout view, insert the map legend by configuring the Legend Wizard dialog box. Right-click the map legend,
Image Classification error
Geographic Information SystemsWhat are the problems in image classification? There are following main challenges in image classification: Intra-Class Variation. Scale Variation. View-Point Variation. Occlusion. Illumination. Background Clutter. How do you solve image classification problems? From a deep learning perspective, the image classification problem can be solved through transfer learning. Transfer learning. Convolutional neural networks. Repurposing a