On day 6 of #30DaysofDiscoverQGIS3x we move into Part 2 Spatial Analysis. The 1st exercise is a combination of a review & an intro to the #QGIS DBManager & the #Spatialite geodatabase. Exercise 2 teaches to create a join and then moves into data classification techniques #gischatpic.twitter.com/CDCRmPQ76I
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Day 14 of
#30DaysofDiscoverQGIS3x Part 3 - Ex 3 teaches how to test data for invalid geometries with the Topology Checker Panel. Vector editing is introduced to correct errors. Along the way the concept &#QGIS implementation of snapping tolerances is explained.#giseducationpic.twitter.com/yR5WpDuKXtPrikaži ovu nit -
Day 15 of
#30DaysofDiscoverQGIS3x Part 3 - Ex 4 focuses on investigating spatial data quality. Learn to map delimited text coordinates including an intentional error the student must correct. Then everyone's favorite topic - what is metadata & how does#QGIS implement Dublin Corepic.twitter.com/z75Yk3YYqtPrikaži ovu nit -
Day 16 of
#30DaysofDiscoverQGIS3x In Part 3 Ex 5 you learn more about working with rasters. Learn: how to create a mosaic with the#GDAL Build Virtual Raster alg, what raster pyramids are & how to generate them, & how to clip a raster dataset. Challenge involves the SRTM pluginpic.twitter.com/AmfCDf7OPfPrikaži ovu nit -
Day 17 of
#30DaysofDiscoverQGIS3x The final exercise of Part 3 teaches the principles behind address geocoding and how to do accomplish it with#QGIS. Learn to use the MMQGIS plugin to geocode via both a street layer or web servicespic.twitter.com/lqbo7Xl0I8Prikaži ovu nit -
This wraps up Part 3 of Discover QGIS 3x - Data Acquisition and Management. Tomorrow I will move into Part 4 - Cartographic Design - the first exercise covered will be Map Composition. Stay tuned!
@locatepress https://locatepress.com/dq3#30DaysofDiscoverQGIS3x#gischatPrikaži ovu nit -
Day 18A of
#30DaysofDiscoverQGIS3x Part 4 Ex 1 is a thorough treatment of map composition in#QGIS. Building on what has been taught so far it begins w/2 use cases for Inverted Polygon Shapeburst Fills. Then design a print composition w/ some tricks using variables & expressionspic.twitter.com/IFKu6bDtbiPrikaži ovu nit -
Day 18B of
#30DaysofDiscoverQGIS3x In the final task of Part 4 Ex 1 learn to set up Map Themes & create a second locator inset map. Also see an example of the Raster Image Marker introduced at#QGIS v3.6! The topic is the site of last years QGIS User Conference: A Coruña (Spain)pic.twitter.com/0yQvQrmlNwPrikaži ovu nit -
We're on day 19 of
#30DaysofDiscoverQGIS3x In Part 4 Ex 2 you learn how to create Atlases in the#QGIS Print Composer. You learn all the settings and how to use Atlas variables to create more sophisticated Atlases. Rule based rendering is also introduced.#gischatpic.twitter.com/ZO2O3pO5C3Prikaži ovu nit -
Day 20
#30DaysofDiscoverQGIS3x Part 4 Ex 3 is a thorough treatment of coordinate reference systems & map projections in#QGIS. Learn how to define a custom CRS.#DidYouKnow in QGIS3x you can run processing algs against layers in different CRSs & there is a valid extents preview!pic.twitter.com/KvXa6zmGyYPrikaži ovu nit -
Day 21 of
#30DaysofDiscoverQGIS3x Part 4 Ex 4 covers some tricks to improve your labeling. Learn best practices for halos, avoid repeats, use labeling expressions, manually place labels, avoid truncated labels & avoid label conflicts w/ items in a map composition#gischat#QGISpic.twitter.com/zFWKXXjH7LPrikaži ovu nit -
Day 22 of
#30DaysofDiscoverQGIS3x The last exercise in Part 4 builds your layer styling skills. Learn the power of expressions & data defined overrides w/ symbology in#QGIS. Here you recreate a historic map of US states by mixing shapeburst fills with a random dot boundarypic.twitter.com/82Zd0paKHHPrikaži ovu nit -
This exercise also showcases the Topological Coloring tool introduced at
#QGIS 3.0.#30DaysofDiscoverQGIS3xpic.twitter.com/kBqc0yLLAzPrikaži ovu nit -
This wraps up Part 4 of Discover QGIS 3x. The final week of
#30DaysofDiscoverQGIS3x will focus on the last section - Advanced Data Visualization. Stay tuned!@locatepress https://locatepress.com/dq3#gischatPrikaži ovu nit -
Day 23 of
#30DaysofDiscoverQGIS3x - Kicking off the Data Visualization section, Ex 1 teaches about Layer Effects in#QGIS. Several common use cases are covered. Here you use an inner shadow used to create a bathymetric depth effect.#gischat https://locatepress.com/dq3 pic.twitter.com/zLS7Uw1N3QPrikaži ovu nit -
Day 24 of
#30DaysofDiscoverQGIS3x Part 5 Ex 2 teaches about Blending Modes in#QGIS - both Layer & Feature. Several common use cases are covered for Multiply, Addition & Dodge. Here you use a "Feature Blending Mode" of Addition to create a road density visualization.#gischatpic.twitter.com/EyfAo13ahPPrikaži ovu nit -
Day 25 of
#30DaysofDiscoverQGIS3x Part 5 Ex 3 teaches about one of the most powerful data viz features of#QGIS - Geometry Generators. This renderer allows you to use the expression engine to modify geometries or create new geometries while rendering! Here polys as centroidspic.twitter.com/lkWznSPGIZPrikaži ovu nit -
Day 26 of
#30DaysofDiscoverQGIS3x The 4th Data Viz exercise teaches several ways to map photopoints. It begins with using the Import Geotagged Photos alg & Image widgets. You then use wedge buffers & a Raster Imager marker w/ geometry generators to map the field of view#gischatpic.twitter.com/k73Rl6a91LPrikaži ovu nit -
On Day 27 of
#30DaysofDiscoverQGIS3x we look at all the ways you can render points in#QGIS: Point clustering, Point displacement & Heatmap rendering (Pt5 - Ex5). This example shows QGIS in Night Mapping mode wh/ is a UI Theme covered in the 1st exercise in the book.#gistribepic.twitter.com/SSB2bT6nDUPrikaži ovu nit -
Day 28 of
#30DaysofDiscoverQGIS3x the 6th Data Viz exercise teaches use of the Time Manager plugin to animate spatial data with a temporal component - specifically 70 years of cyclone formation points. You begin by formatting the attribute data & then work with the settings.pic.twitter.com/EieWNpNoTgPrikaži ovu nit -
Day 29 of
#30DaysofDiscoverQGIS3x - The 7th Data Viz exercise focuses on the native#QGIS 3D viewer. Learn to work with both raster elevation data & 3D vector data, how to work with Keyframes to create an animation & how to add a 3D view to a Print Composition#gistribe#foss4gpic.twitter.com/6e3r7yHz3OPrikaži ovu nit -
It's Day 30 of
#30DaysofDiscoverQGIS3x! The final Data Viz exercise focuses on#QGIS support for Mesh data. Learn what mesh data is, where to find it, how to work with it & style it. Learn to create temporal animations & plot Mesh data with the Crayfish plugin@lutraconsultingpic.twitter.com/0bGclOyoZpPrikaži ovu nit -
#30DaysofDiscoverQGIS3x Did you know that at the end of the book are 3 useful appendices? A - Keyboard shortcuts B - Popular Plugins C - Getting InvolvedPrikaži ovu nit -
I hope everyone has enjoyed the
#30DaysofDiscoverQGIS3x! It can be purchased as an ebook or paperback at http://locatepress.com/dq3 along with many other great books on#qgis#pyqgis#postgis#pgrouting#gdal#hydrological@locatepressPrikaži ovu nit -
I am interested in knowing who is using this in the classroom. Let me know, and of course feedback is always welcome
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