Yukon GIS « geospatial tidbits for and from the Yukon

Add a nodata mask to a read-only image?

Posted on 2021-Feb-19 by matt

I finally came up with a solution to the problem of how to deal with missing or inappropriate nodata in imagery that we can’t change […]

Data, Gdal-ogr, Tip

Goodbye ArcMap

Posted on 2020-Dec-05 by matt

my largest reservoir of sadness is held for those technicians and analysts and developers that, at each iteration, choose to opt out

Opinion

Yukon NTS Index

Posted on 2020-Nov-12 by matt

A commonly used dataset that’s not readily for available for download in ways I find useful is the Canadian National Topographic Series index for the […]

Data

Sooner than later, every GIS user in the territory will need to convert spatial data into our standard Yukon Albers projection and be presented with a dialog that has no less than 17 choices and wonder “What is the right choice??”.

ArcMap, Tip

Always ask for the source files, not just the final product

Posted on 2019-Jun-25 by matt

I’ve been asked to make a map of the final admin plan for Dàadzàii Vàn (Summit-Bell) Territorial Park for Cabinet submission. So an important map […]

Opinion, Tip

A comet flies on by, and out

Posted on 2019-May-28 by matt

A response to Leaving the GIS industry: bye for now Alexey Tereshenkov has done more in 10 years than I have in 27, and what […]

Uncategorized

Fix labels on top of linework

Posted on 2019-May-08 by matt

Fix some labels-on-linework problems using Maplex Labelling toolbar >> Weight Ranking. I’ve been using Maplex label engine for years, but didn’t really pay attention to […]

ArcMap, Cartography

QGIS and Mapservices.gov.yk.ca #2

Posted on 2019-Jan-29 by matt

I’ve had this sitting in draft for over a year, waiting for me to come back to it and add missing details. That’s not going […]

Data, Qgis

QGIS and Mapservices.gov.yk.ca #1

Posted on 2019-Jan-29 by matt

I’ve had this sitting in draft for over a year, waiting for me to come back to it and add missing details. That’s not going […]

Data, Qgis

Taming Lengthy Definition Queries

Posted on 2018-Oct-23 by matt

Break a complex definition query into logical segments and spread over several lines to make understanding and debugging easier. Also use a syntax colouring text editor.

ArcMap, Tip