IBAMA Plugins July/2015
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Transcript of IBAMA Plugins July/2015
IBAMA Plugins for QGISBrazilian Institute of Environment and Renewable Natural Resources
COTIG – Coordination of Geotechnology
Overview
● Demand: High use of images satellite for monitoring
● Solution:● Server: Delivery of images by TMS● Plugins:
● Quickly change the visibility of the target image.● Get automatic images from interest area● Show image in others window.
http://www.ibama.gov.br July 2015 Luiz Motta
Delivery of images by TMS● Processing of ~57K Rapideye images.Every day are processed Landsat images.
● Use the script(shell and Python) forcreate TMS and GDAL_WMS files [1].
[1] https://github.com/lmotta/scripts-for-gis
Quickly change the visibility of the target image
● Plugin: Toggle Active Layer [1]
● Simple tool for change the visibility of active layer.
● When pressing button mouse in map canvas, change the visibility of active layer.
● It is used for see difference with layers below of active layer
[1] http://plugins.qgis.org/plugins/toggleactivelayer_plugin/
Get automatic images from interest area.
● Plugin: Catalog on the fly [1]
● Search for catalog layer in current project● Fields: Date(not mandatory) and address of each image*Address: local image or GDAL_WMS for Internet
● Geometry: Footprint of image (polygon layer)
● Get images where intersect with extent map canvas. Use the features geometry of catalog layer for query.
[1] https://plugins.qgis.org/plugins/catalogotf_plugin/ - V. 1.0
It is not mandatory. The field is date type
Local file, or, Internet by address for WMS_GDAL, prefix = http and suffix = .xml
Get automatic images from interest area.
● Check the layer, to search images where intersect with map canvas.
● Create a “group” for add new images (name layer - Catalog)
Reverse order by date or name image
Get automatic images from interest area.
● Buttons for seach features in map canvas:
● Run for all.
● Run for selected.
● Cancel
● Waiting cancel
Get automatic images from interest area.
● Create contex menu for each image in catalog group:● Zoom to● Highlight
WMS_GDAL need have the TAG <TargetWindow>, this TAG is not standard.TargetWindow: Extent of image.
Get automatic images from interest area.
Show image in other window
● Plugin: Auxiliary Window [1]● Open the new window with select layers in main window.
● Auxiliary window is synchronize with main window.● Can show, hide and remove layer● Add new selected layers from main● Select the layer in main window from the auxiliary window.
● Can see the cursor and extent main map.
[1] http://plugins.qgis.org/plugins/auxiliarywindow_plugin/
Toggle with main window:1) Synchronization2) Cursor3) Extent
Actions:4) Highlight extent in main window5) Scale factor from main window6) Set scale this window for main
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Selected layers:1) Show2) Hide3) Remove
4) Add from main window the selected layers
5) Select current layer in main window from current layer in auxiliary window.
Show image in other window