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#IMPORT DEM IN PLS CADD HOW TO#
#IMPORT DEM IN PLS CADD DOWNLOAD#
#IMPORT DEM IN PLS CADD FREE#

#IMPORT DEM IN PLS CADD HOW TO#

The rest of this TechNote will explain how to use ChartTiff's data, as it is Recommend that you obtain your USGS data in a readily used format at a minimal cost fromĬhartTiff. Since this TechNote was first developed in the summer of 2000, the USGS has undergone many changes in their data formats and sources.Īs a consequence, they made previous conversion programs obsolete and more difficult to use in practice. The rest of this TechNote will explain this process. You just have to know where to find it and how to use it.

#IMPORT DEM IN PLS CADD FREE#

That most of the data is free and can be downloaded from the Internet. This TIN gives us the surface map from which we can then begin cutting profiles over our line routes, includingįinally, once the line is designed, Plan & Profile drawings can be made for use with permit applications, public informationĪnd even for bidding by line contractors.Īs you can see, this is a powerful, quick and accurate way to develop preliminary line designs. These points can be imported into PLS-CADD and a TIN (Triangular Irregular Network) can beĬreated from them. Using this method, many routes can be evaluated very quickly.ĭEM stands for Digital Elevation Model and is merely a set of points, in XYZ format, that are used to develop the contours Using DRGs, preliminary routes can easily be selected while considering man-made objects, terrain and even wetland avoidance. Methods, it is overkill for the typical use of developing a preliminary line design. While this process is a requirement for aerial photography based To make them as near to perfect as they can be.

Orthorectified: These types of DRG’s have already been draped over a DEM file and have been orthorectified in order.

You can watch this video to see how this works.

#IMPORT DEM IN PLS CADD DOWNLOAD#

They can also be downloaded using the Drafting/Attachments/TerraServer Image Download command in PLS-CADD. These types can be found in a few places on the Internet for free,īut most sites will require you to purchase them for a nominal fee. Imagery without the information included in the collars.

Seamless: These types of DRG’s delete the collar and it’s content and provide a way to obtain continuous digital.

They are usually free on the Internet and can be purchased at minimal cost from

Collared: This is the simplest format that has the entire quad scanned, including the collar and any information.

Two formats commonly used are DRG and DEM.ĭRG stands for Digital Raster Graphic and is simply a high quality scanned image of a USGS quadrangle "quad" map.Ī portion of a typical DRG is shown in the PLS-CADD screen shot above. Good enough to produce Released for Construction drawings, it is excellent for preliminary costing of linesĪnd even allows you to begin the procurement process earlier, which is a welcome opportunity in today’sįast-paced Just-In-Time engineering and construction environment. Line costs if the USGS data is accurate enough.

This data canīe used to develop preliminary transmission line routes, complete with plan & profile drawings and even Phone: (608) 238-2171, Fax: (608) 238-9241ĭigital data derived from USGS information can be found in many formats and in many places on the Internetīoth commercially and free, depending on the quality and desired format of the information. Technical Note: Importing USGS DRGs and DEMs into PLS-CADD