DynamicMaps

GeoServer – Offset Inner Lines
By David Crowther Question: How can I style a polygon to show the inside boundary of a property? Answer: Follow the ...
QGIS – Valhalla Isochrones
By David Crowther Question: Can you create distance/time isochrones in QGIS? Answer: Yes, QGIS has several tools and...
QGIS – Importing AutoCAD DWG
By David Crowther Question: Can you open an AutoCAD DWG into QGIS? Answer: Yes, QGIS has an importing tool so that y...
SQL – Extract Centroid X and Centroid Y Values
By David Crowther Question: How can you extract the X and Y Coordinates for a table in a SQL Database? Answer: If yo...
MapThat – Cannot Create New Record – Unique Index
By David Crowther Question: In MapThat, when I create a new record with the same Plot ref / Feature ID, it fails to ...
MapThat – Create New Icons
Question: In MapThat how can you create image icons for the Layers Panel? Answer: MapThat allows you to show any sui...
QGIS – Ignore Invalid Geometry when Geoprocessing
By David Crowther Question: When I run a QGIS Geoprocessing task it keeps failing saying there is invalid geometry –...
QGIS – Refractor
By David Crowther Question: How can I change the table structure of my GIS data using QGIS? Answer: Are you using QG...
QGIS – Topological Colouring
By David Crowther Question: How can you randomly colour polygons in a layer within QGIS? Answer: The Topological Col...
QGIS – Aggregate
By David Crowther Question: How can you group individual records into Multi-Part objects within QGIS? Answer: The Ag...
QGIS – Apply a Layer Style
By David Crowther Question: How can you quickly apply a style to a layer within QGIS? Answer: The Layer Style within...
MapThat – Hover Style
By David Crowther Question: How can you change the colour shown when hovering over a map feature in MapThat? Answer:...
MapThat – HTML Bubble Wrap - Results
By David Crowther Question: In MapThat, how can you wrap the Information Bubble so that the results values don’t str...
QGIS – Extract Well Known Text (WKT)
By David Crowther Question: When I try to import data into my spatial database QGIS is throwing an error and the imp...
SQL – Renaming a Database
By David Crowther Question: How do you rename a SQL Database? Answer: It is quite simple to rename a SQL Database. U...
QGIS – List Unique Values
By David Crowther Question: How can you List Unique Values for a layer within QGIS? Answer: The List Unique Values T...
QGIS – Convert to Spatial Bookmarks
By David Crowther Question: How can you create Spatial Bookmarks based on my layers within QGIS? Answer: The Convert...
QGIS – Network Analysis: Service Areas
By David Crowther Question: How can I calculate isochrones within QGIS? Answer: In this previous blog we explore a n...
QGIS – Creating Heatmaps
By David Crowther Question: How do you create a heatmap within QGIS? Answer: A Heatmap is a common method to show in...
MapThat – EXTMODEL for NULL Values
By David Crowther Question: When I view the Data Table in MapThat, some values are showing as EXTMODELXXX-1, what is...
MapThat – Hits Panel Data Table Error
By David Crowther Question: When I choose to display a layer, the Bubbles associated to the layer and the Data Table...
QGIS – Setting a Default Map Projection
by David Crowther Question: In QGIS is it possible to set my default Map projection? Answer: Yes, QGIS has a number ...
QGIS – Default Layer Colour Options
by David Crowther Question: In QGIS is it possible to change the default Colours shown when changing a Layers Style?...
QGIS – Configuring the Map Scale Options
by David Crowther Question: In QGIS is it possible to configure the Map Scale options? Answer: From the bottom statu...
QGIS – Change Selection Colour
by David Crowther Question: In QGIS when I select a feature it automatically changes colour to Yellow. How can I cha...
QGIS – Open and Query PostGIS Data
By David Crowther Question: How can I open data from my PostGIS database? Answer: Why not use the PostgreSQL Execute...
MapThat – Creating Label Layers
By David Crowther Question: How can you label features in MapThat? Answer: Previously Label Type layers were used as...
MapThat – File Manager Shows No Records
By David Crowther Question: Why does the File Manager Tool show no records? Answer: In the MapThat Admin Forms, vers...
QGIS – Truncate a Layer
By David Crowther Question: How can you quicky delete all the records/features in my GIS layer using QGIS? Answer: T...
QGIS – Add RowID Field
By David Crowther Question: How can you add a RowID Field to a layer within QGIS? Answer: The Add AutoIncremental Fi...