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Posts Tagged ‘kml’

Data acquisition: How do I know if this river is been well acquired?

2010/06/14

I’ve already entered my river but my imagery was in 2D so… was it well acquired?…  First of all, I import my shape (shp) file into Global Mapper (what a great sofware!) and export my vector file as a KML.

Import my river.kml file into my brand new Google Earth 5.2 or just double-click it in his location… easyest impossible!.

Select it and use ‘show elevation profile’,  a very useful new tool for these purposes…

And that’s it, constant altitude, almost perfect!.

Hope you have considered it interesting:-)

Alberto

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The SketchUp 3D API: Working with 3D geospatial data

2010/06/14

I hereby post this video by Matt Lowrie (Google). hope it’s interesting for you guys.

Alberto

GIS+Architectural scenaries. Awesome!

2010/06/12

Even from scratch or from dgn/dxf vectorial format’s contour lines you create your own scenario.

Then import your model previously created using Sketch-up (this time i used google’s 3d warehouse, thank you Dilbert).

Stamp your house using sketch-up sandbox tools.

Then fur your scenario as if it was grass…

A little of photoshop like clouds and thats it!

Alberto Concejal
geographer, 3d designer & 3D GIS technician
albertoconcejal [at] gmail.com

Interesting: sketchup, more than a quick visualization tool.

2010/05/26

I’ve extracted this information from the very interesting ‘Sketchup blog’ from Google… They talk about something I have always thought it could happen… Sketchup is not only a rapid visualization tool but a CAD like software with visuallization capabilities which in addition is integrated within a world wide used 3D scenary, perfect for Geovisualization and why not, GIS. Let’s  take a look at what they say…

Collard Maxwell Architects is a Sydney-based architecture firm with a philosophy that successful architecture is the synthesis of art, technology and building economics resulting in memorable, economic and sustainable building solutions.

Alberto Sunderland, a Project Leader for CM+A, says that initially SketchUp Pro was used as a quick visualization tool of early concept work.

The models were never very detailed and it was a tool used primarily within the office. It was used as a quick way of understanding massing and scale to determine if the design was heading the right direction.

As our skill grew we began to use SketchUp to generate models we could show our clients to help them understand the projects and to provide a quick and effective way of trying out changes before updating all our cad documentation.

Over a period of time we began to use SketchUp Pro for tender presentations. Although we originally took the images and “dumped them” into Photoshop to create the presentation posters, we eventually discovered the possibilities of the SketchUp Pro’s LayOut tool. Combining LayOut with our SketchUp work has made the creation of simple, effective and clear presentations much quicker than our previous method utilizing Photoshop. We are very impressed.

We anticipate that SketchUp will become the primary visualisation tool in this office and, together with LayOut, it will be used to create most, if not all our presentation slides. The speed and ease of use of the software is amazing, and we are coming to appreciate the importance it may have within our workflow.

thanks to Chris Dizon, SketchUp Pro Team

hope you have consider it interesting.

Regards,

Alberto Concejal
BA Geography
MSc GIS and Remote Sensing
GIS Technician
albertoconcejal -at -gmail.com

Geovisualization, 3D models and more!

2009/08/17

Here you will be able to see some of my latest 3D stuff… A compilation of 3D models, flythroughs and graphic resuorces available… All you need regarding 3D scenarios (heights datasets, satellite imagery and 3D models) and Video Edition… Are you guys thinking about doing something like this?. Please contact me.

Alberto Concejal
BA Geography
MSc GIS and Remote Sensing
GIS Technician
albertoconcejal -at -gmail.com

More of my 3D video edited scenarios.

2009/08/16

Please, dont forget to turn on your speakers. Even if i first used a different score and Youtube’s elfs told me not to use it (because of copyright authoring) I have chosen this music from their stuff and this is what I finally got…

Hope you like it.
Alberto
BA Geography
MSc GIS and Remote Sensing
GIS Technician and Multimedia Designer
albertoconcejal -at -gmail.com

One more 3D building. Avenida de la Vega 28108. Restaurante Asiático SHENG. Madrid, Spain.

2009/08/15

I used to have lunch every thrusday there, at the ‘Restaurante Asiático SHENG’. I strongly recommend you ‘entremeses’ (In China you will find them as ‘dim-sum’) and Cantonese duck or Hong Kong duck (this was slightly spicy thou).  Very good food, very fast service and pretty cheap menu: 10,7 €… ideal for an IT worker!.

chino02

These views were rendered using ‘V-RAY’ for Sketch-up.

chino03

avenida_de_la_vega_03

And now, Let’s go to Google Earth!

avenida_de_la_vega_04

avenida_de_la_vega_05

(I have modified my kml using a extruded placemark we talked about a few posts ago).
Now Let’s have our business in 3D!!!!!!!!!!!!!!!.
Hope you like it.
Alberto
BA Geography
MSc GIS and Remote Sensing
GIS Technician
albertoconcejal -at -gmail.com

Vicalvaro Buildings 3D. Madrid, Spain.

2009/08/11

And Now I would like to add one more set of buildings around my house. This is a block of flats in Vicálvaro, Madrid, Spain. This is supposed to be ‘Valderribas’ area… hope you like them!

vic_09

vic_08

vic_05

vic_06

vic_07

Creating and personalizing KML code (placemarks).

2009/08/11

First of all, what is KML?. KML is a file format used to display geographic data in an Earth browser, such as Google Earth, Google Maps, and Google Maps for mobile. You can create KML files to pinpoint locations, add image overlays, and expose rich data in new ways. KML is an international standard maintained by the Open Geospatial Consortium, Inc. (OGC). You can choose wether authoring directly from Google Earth itself or you can try to understand the code and doing it by yourself… You can draw placemarks (using descriptive HTML to personalize them), ground overlays, paths, polygons… Let’s start with the placemark:

-> Simple placemark

<?xml version=”1.0″ encoding=”UTF-8″?>
<kml xmlns=”http://www.opengis.net/kml/2.2″&gt;
  <Placemark>
    <name>Simple placemark</name>
    <description>Attached to the ground. Intelligently places itself
       at the height of the underlying terrain.</description>
    <Point>
      <coordinates>-122.0822035425683,37.42228990140251,0</coordinates>
    </Point>
  </Placemark>
</kml>

simpleplacemark

  • An XML header. This is line 1 in every KML file. No spaces or other characters can appear before this line.
  • A KML namespace declaration. This is line 2 in every KML 2.2 file.
  • A Placemark object that contains the following elements:
    • A name that is used as the label for the Placemark
    • A description that appears in the “balloon” attached to the Placemark
    • A Point that specifies the position of the Placemark on the Earth’s surface (longitude, latitude, and optional altitude)
  • -> Floating placemark

    <?xml version=”1.0″ encoding=”UTF-8″?>
    <kml xmlns=”
    http://www.opengis.net/kml/2.2” xmlns:gx=”http://www.google.com/kml/ext/2.2” xmlns:kml=”http://www.opengis.net/kml/2.2” xmlns:atom=”http://www.w3.org/2005/Atom“>
    <Document>
     <name>Floating placemark.kml</name>
     <Style id=”downArrowIcon”>
      <IconStyle>
       <Icon>
        <href>http://maps.google.com/mapfiles/kml/pal4/icon28.png</href&gt;
       </Icon>
      </IconStyle>
     </Style>
     <Placemark>
      <name>Floating placemark</name>
      <description>Floats a defined distance above the ground.</description>
      <LookAt>
       <longitude>-122.0839597145766</longitude>
       <latitude>37.42222904525232</latitude>
       <altitude>0</altitude>
       <range>500.6566641072245</range>
       <tilt>40.5575073395506</tilt>
       <heading>-148.4122922628044</heading>
      </LookAt>
      <styleUrl>#downArrowIcon</styleUrl>
      <Point>
       <altitudeMode>relativeToGround</altitudeMode>
       <coordinates>-122.084075,37.4220033612141,50</coordinates>
      </Point>
     </Placemark>
    </Document>
    </kml> 

    floatingplacemark

    -> Extruded placemark

    <?xml version=”1.0″ encoding=”UTF-8″?>
    <kml xmlns=”
    http://www.opengis.net/kml/2.2” xmlns:gx=”http://www.google.com/kml/ext/2.2” xmlns:kml=”http://www.opengis.net/kml/2.2” xmlns:atom=”http://www.w3.org/2005/Atom“>
    <Document>
     <name>Extruded placemark.kml</name>
     <Style id=”globeIcon”>
      <IconStyle>
       <Icon>
        <href>http://maps.google.com/mapfiles/kml/pal3/icon19.png</href&gt;
       </Icon>
      </IconStyle>
      <LineStyle>
       <width>2</width>
      </LineStyle>
     </Style>
     <Placemark>
      <name>Extruded placemark</name>
      <description>Tethered to the ground by a customizable
              &quot;tail&quot;</description>
      <LookAt>
       <longitude>-122.0845787421525</longitude>
       <latitude>37.42215078737763</latitude>
       <altitude>0</altitude>
       <range>365.2646606980322</range>
       <tilt>40.55750733918048</tilt>
       <heading>-148.4126684946234</heading>
      </LookAt>
      <styleUrl>#globeIcon</styleUrl>
      <Point>
       <extrude>1</extrude>
       <altitudeMode>relativeToGround</altitudeMode>
       <coordinates>-122.0857667006183,37.42156927867553,50</coordinates>
      </Point>
     </Placemark>
    </Document>
    </kml>

    extrudedplacemark

    If instead of regular <description>

    <description>Attached to the ground. Intelligently places itself
           at the height of the underlying terrain.</description>

    simple

    you use the CDATA element, you can write HTML and avoiding Google Earth from parsing the code incorrectly:

     <description>
            <![CDATA[
              <h1>CDATA Tags are useful!</h1>
              <p><font color=”red”>Text is <i>more readable</i> and
              <b>easier to write</b> when you can avoid using entity
              references.</font></p>
            ]]>
          </description>

     cdata

    Windmills (wind turbines). Geovisualization live!

    2009/08/10

    I will do my best to build a 3d scenario incluiding a few wind generators located very close to Pancorbo Cliff, North of Spain, about 320 km from Madrid. As usual, I started getting a model from 3D warehouse and included inside my google sketch up session… after that it was just placing it in my GE scenario… That’s it!. Now a little bit of literature: 

    wind_01

    The most modern generations of windmills are more properly called wind turbines, or wind generators, and are primarily used to generate electricity. Modern windmills are designed to convert the energy of the wind into electricity. The largest wind turbines can generate up to 6MW of power (for comparison a modern fossil fuel power plant generates between 500 and 1,300MW).

    wind_02

    With increasing environmental concern, and approaching limits to fossil fuel consumption, wind power has regained interest as a renewable energy source. It is increasingly becoming more useful and sufficient in providing energy for many areas of the world.

    wind_03

    One area where turbines have become feasible is in the Midwestern United States, due to great amounts of wind.

    wind_04

    Source: Wikipedia

    wind_05

    Hope you liked it.
    Alberto
    BA Geography
    MSc GIS and Remote Sensing
    GIS Technician
    albertoconcejal -at -gmail.com