Category: Geographic Information Systems

Reprojecting raster from lat/lon to UTM in R?

How do I Reproject a raster stack in R? We can use the projectRaster() function to reproject a raster into a new CRS. Keep in mind that reprojection only works when you first have a defined CRS for the raster object that you want to reproject. It cannot be used if no CRS is defined.

When I use QGIS with OpenLayers Plugin,

How do I add OpenLayers plugin to QGIS? The OpenLayers plugin is available through the official QGIS plugin repository HERE. You can install by simply adding it to your plugins directory, as described in a previous post, after downloading and unzipping. Select the plugin (if necessary) in the Plugins->Manage plugins … menu, as seen below. 

Creating Pie Chart in Legend with Varying Representations of Percentage using ArcGIS for Desktop?

How do you add percentages to a pie chart legend? To display percentage values in the legend of a pie chart On the design surface, right-click on the pie chart and select Series Properties. The Series Properties dialog box displays. In Legend, type #PERCENT for the Custom legend text property.   How do you add

Minimum cost path on the whole globe?

How do you find the minimum cost of path? Min cost path using recursion: If N is less than zero or M is less than zero then return Integer Maximum(Base Case) If M is equal to zero and N is equal to zero then return cost[M][N](Base Case) Return cost[M][N] + minimum of (minCost(M-1, N-1), minCost(M-1,

QGIS3 Separately rotate the orientation of individual composer atlas maps?

How do I change the orientation of a map in QGIS? Click the Item Properties tab on the left lower panel and find the setting for the orientation. Change the value of the setting Map orientation to ‘15.00° ‘. You should see the orientation of the map item change. button. Can you rotate map in

Loading layer into QGIS via Python

How do I import layers into QGIS? Click on the “Layer” menu, mouse-over “Add Layer” and click “Add Vector Layer…” You can also click the “Add Vector Layer” button in the left hand column of QGIS. If the shapefiles you have are on your local machine, all you need to do is click on the

Label expression help with loop field and multiple fields

How do I label multiple fields in ArcGIS? How to Label More Than One Field in ArcMap Open up the ArcMap (. Select the layer file you want to label more than one field with. Right click on the layer and display the properties. Click the Labels tab. Click the Expression button. Click on the

Methods to accurately georeference geographic map?

What are the 3 methods of georeferencing? In these help guides, we will illustrate three methods of Georeferencing: using ArcGIS software, using Quantum GIS (QGIS) software, and using the online Georeferencer. The steps below detail the basic workflow that will be followed using any of these methods. Which is used to determine the accuracy of

Merging two datums to create single elevation dataset in ArcMap?

How do I merge two DEM files in ArcGIS? Note: Start ArcMap. Load the DEMs files you want to filter. On the main menu, click Customize > Toolbars > Production Contouring. Click the Merge And Filter DEMs button. on the Production Contouring toolbar. Click Merge Only in the Operation area. Click the Open button. Navigate

QGIS label conflict

How do I stop labels colliding in QGIS? Bio Question: How can you stop labels overlapping the edge of the map in QGIS? Answer: To ensure that your labels do not overlap the edge of the map, you can use the Automated Placement Settings in the Label Properties for your layer. In the Automated Placement

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