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View Geometries as Map

KNIME Spatial Processing Nodes version 1.2.2.v201911131528 by EIFER (European Institute for Energy Research)

Displays one (or two) table(s) made of spatial features on a map.

Input data should contain a "the_geom" column encoded in WKT (Well-known Text) representation, and a variable storing the Coordinate Reference System. The best is to display data which was loaded using the "Read Shapefile as WKT" node.

Once you are in the the view:

  • wheel scrolling zooms in and out
  • the "Spatial tools" menu provides "zoom to fit", zoom in and out, info or pan (move) features

You can color the geometries by tuning the default colors in the configuration pane. You also can use the color manager node, and assign colors to each line based on its characteristics; this leads to more interesting symbologies.

The actual visualization is done using the wonderful geotools library.

Options

top table: default color
The color to use if there is no color assigned to each line
top table: opacity
Opacity of the geometries of the first table. Keeping a bit of transparency is good (defaults to 0.7), as it helps to detect overlapping geometries.
bottom table: default color
The color to use if there is no color assigned to each line
bottom table: opacity
Opacity of the geometries of the first table. Keeping a bit of transparency is good (defaults to 0.5), as it helps to detect overlapping geometries, and enables to views the geometries of the first table below.
WMS server for overlay
The server to load the background overlay from. Change in case the overlay is not displayed.

Input Ports

Icon
A table with WKT data
Icon
(optional)A table with WKT data

Views

view map
View the table(s) on the same map

Best Friends (Incoming)

Workflows

Installation

To use this node in KNIME, install KNIME Spatial Processing Nodes from the following update site:

KNIME 4.3

A zipped version of the software site can be downloaded here.

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Developers

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