Archives for

# Land survey

Topography. Topographic maps

## Make a digital terrain model (MDT / DTM) with Microstation and fit an orthophoto

Previously we were seeing how an MDT was made, and level curves with AutoCAD to generate contour lines. The ideal program to do this is GeoPack, from Microstation, which is equivalent to Civil3D from AutoDesk, it can also be done with Descartes, an equivalent of AutoCAD Raster Desing. With these programs you save a ...

## Construct contour lines using AutoCAD

We used to look at exporting data to Excel using Softdesk, now let's see how to create contours, the process in Civil3D has been simplified but it usually has the same logic that I will explain from my old CAD Topography manual. 1 Drawing of elevation points The survey that I made in ...

## Geofumadas on the fly November 2007

Here some topics of interest, during the month of November: 1. Google Street View cameras Popular Mechanics tells us about the cameras that were used to build those maps at the foot of the street ... and some shorts :) 2. Convert UTM coordinates - Geographical Cartesia offers the functionalities of a tool to make conversions ...

## Construct polygon with AutoCAD and Excel

At the request of an alumnus who missed the class, I answer a question regarding the construction of polygonal lines in AutoCAD. In this case we have a table, in the first column we have the stations, in the second the distances in meters and the third column contains the courses. Well, we will proceed to build the polygonal, ...

## Welcome to Cartesia Xtrema

After a few months away, Nancy returns to her blog Cartesia Xtrema, with her practical depth reminds us of a very important issue: The unbearable remoteness of accuracy. ... you need to establish limits that indicate how far the measurements can be considered valid and what degree of precision ... Take a look, because under a ...

## UTM Coordinates in Google Earth

In Google Earth the coordinates can be seen in three ways: Decimal degrees Degrees, minutes, seconds Degrees, and decimal minutes UTM coordinates (Universal Traverso de Mercator Military grid reference system This article explains three things regarding the handling of coordinates UTM in Google Earth: 1 How to see the UTM coordinates ...

## Cortes in profile, in Google Maps

Hey What's that is a service based on the Googlemaps API, which allows to mark points on a map and visualize the profile of the route. Quite practical for various purposes of topography, route design, location of antennas and other purposes. Interesting, because additionally you can activate the contour lines and a strange ...