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 to make a DTM, and contour lines with AutoCAD to generate contour lines. The ideal program to do this is GeoPack, from Microstation which is an equivalent to Civil3D from AutoDesk, it can also be done with Descartes, an equivalent to AutoCAD Raster Design. With these programs you save a ...

## Construct contour lines using AutoCAD

Before we took a look at exporting data to Excel using Softdesk, now let's see how to create contour lines, 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 have carried out in ...

## Geofumadas on the fly November 2007

Here are some topics of interest during the month of November: 1. The 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 pants :) 2. Convert coordinates UTM - Geográficas Cartesia offers the functionalities of a tool to make conversions ...

## Construct polygon with AutoCAD and Excel

At the request of a former student who missed class, I answered a question regarding the construction of traversals 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 bearings. 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 its practical depth reminding us of a very important topic: The unbearable remoteness of accuracy. ... limits need to be established 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 viewed 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 UTM coordinates ...

## Cortes in profile, in Google Maps

Hey What's that is a service based on the Googlemaps api, which allows you to mark points on a map and view the profile of the route. Quite practical for a variety of surveying, routing, antenna placement, and other purposes. Interesting, because additionally you can activate the contour lines and a strange ...