#Google earth pro topography install
#Google earth pro topography software
#Google earth pro topography code
#Google earth pro topography free

The UTM system is not a single map projection.

However, it differs from that method in several respects. it is used to identify locations on the Earth independently of vertical position. Like the traditional method of latitude and longitude, it is a horizontal position representation, i.e. UTM – The Universal Transverse Mercator (UTM) conformal projection uses a 2-dimensional Cartesian coordinate system to give locations on the surface of the Earth. Projection – To make a map of a spherical earth 2-dimensional, a “projection” is required.

#Google earth pro topography free

QGIS is an extremely powerful free program that is gaining traction, Parks Canada being one major user. ArcGIS is the industry standard but expensive. For this reason, Uncollared map imagery is what you’ll want when using a GIS program. When using a GIS program a collar is an annoyance that gets in the way of stitching and is complicated to remove accurately. when using a photo editor to print your map). It is commonly included on print-ready maps (e.g. ice cliffs on flat glaciers (Burnie, Bugaboos).Ĭollared/Uncollared – A map collar is the white space and information surrounding the map imagery including things like map name, declination details, legend, etc. Like Canvec data this data is largely computer generated and often has major problems, e.g. This lead to the development of the TRIM II program.

#Google earth pro topography code

The Forest Practices Code put greater demand on increased information content for features such as roads, stream, forest openings and such. The map compilation photography was as much as 15 years out of date. For several reasons, it was necessary for the data to be updated. The original TRIM program, consisting of 7027 digital files, was completed in December 1996. The biggest problem is that the imagery and spot elevations are mostly computer generated, and haven’t had detailed attention from a (human) map maker required to produce a truly fine map. glaciation, ground cover, buildings, roads, etc.), and DEM data. NAD27 vs NAD83Ĭanvec – all-metric maps based on the most recent imagery, terrain features (e.g. There are several problem with these maps: 1) Mapsheets use different contour intervals (older 100 ft and metric 40 m maps are often on neighbouring mapsheets making stitching a nightmare in some areas you get 10-40 m contours at lower elevations and 40-100 m contours at higher elevations on the same mapsheet – yikes!) 2) Mapsheets use different datum, e.g.

These maps are typically very well designed and crafted, and for 50k maps they are quite detailed and effective navigation tools. NTS – National Topographic System, an indexing system that organises all of Canada’s maps into an alphanumeric system.Ĭanmatrix – This is the old printed map format used in Canada. This data is collected from aerial photographs (older) and satellite imagery. GPX – GPS data file format containing, among other things, waypoints and tracksĭEM – digital elevation model. Transparency – Transparencies in layers allow you to see layers below. Layers that are above cover layers that are below. Layers – Image and GIS editing programs use layers, similar to the layers of paper on a desk. GeoTIFF or GeoPDF – TIFFs or PDFs that have embedded GIS information GIS – a Geographic Information System is a system designed to capture, store, manipulate, analyze, manage, and present all types of spatial or geographical data.

#Google earth pro topography install

Google Earth Pro: and use GEPFREE as the install key if asked. Have you been using your Smartphone for navigation lately? Wondering if it makes any sense to keep bringing along that old GPS (so say nothing of a map and compass…)? Check out my article on Trip Planning for Garmin GPS units with Google Earth. QGIS – If you want to do more complicated things with a map a full-fledged GIS program allows you to create maps that are fully customized to your needs.

#Google earth pro topography software

Photo Editors - this can be a quick and dirty way of printing print-ready maps available online using software already on your computer.

– an easy, inexpensive online way to produce good topo maps on high quality paper.

I’ll go over the first two superficially, reserving most of our time for learning to use Quantum GIS (QGIS). Three techniques for printing your own topo maps will be discussed here.