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FEATURING GEO LINK TO IMAGE IN ER Mapper 7

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In the ER Mapper application, the term means GeoLink make connections between two or more images in a different window. GeoLink mode should be in the same projection system. ER Mapper provides GeoLink modes include: Window mode is the relationship of two or more different image in the display window on the windows the same extent.

Screen Mode is the relationship between the image where the image as a master, while the other image relative to him.


a. GeoLink to Window

GeoLink to window provides an easy to observe some of the images that have the same coverage area, or nearly the same at the same time in separate windows, but with the same scale.
  • To provide first started, two different image data in the same projection system (eg landsat_indonesia.ecw and pangrango_001_geo.ecw)
  • Open a new window by clicking the open fi twice to display two windows
  • Click to load the data (Landsat indonesia.ecw) the unity window, and click to load the data (pangrango_001_geo.ecw).
Foto

  • For the window to one and the second window, right-click and then click Quick Zoom | Set GeoLink to Window to create a window mode.
Foto

  • Two windows are connected to each other, and the addition can be done to make GeoLink window window as much as possible.
b. GeoLink to Screen

GeoLink GeoLink to Screen is a system in which one image is displayed with a particular viewing position, while the other images will have the same position and tied with the first image window. So GeoLink to screen this will have a display as an overlay, but with separate layers for different window for each image.

  • To provide first started, two different image data in the same projection system (eg landsat_indonesia.ecw and pangrango_001_geo.ecw)
  • Open a new window by clicking the open fi twice to display two windows
  • Click to load the data (Landsat indonesia.ecw) the unity window, and click to load the data (pangrango_001_geo.ecw).
Foto
  • For the window to one and the second window, right-click and then click Quick Zoom | Set GeoLink to Screen for making screen mode.
Foto
  • Two windows are connected to each other, and can be done to make GeoLink addition of window screen as much as possible.
Overlay and Algorithms

Algorithm is the basic building within ER Mapper algorithm stores all the information necessary to display the data as an image. The information stored in an algorithm includes a data source, the colors used for display, data processing steps in detail. An algorithm is a revolutionary concept that separates the data from data processing. All data integration, data processing options other files contained in the algorithm. All this is created and edited by ER Mapper, ER Mapper which contain different types of data processing algorithms.
  • Please open the file that has been available (eg Landsat indonesia.ecw)
  • Open the window by clicking the algorithm (RGB): RGB, so the image appears like this
Foto
  • Click the button text [RGB] RGB to activate the layer file
  • Click the paste to duplicate the layer so that the display becomes as shown below
Foto
  • Click on the topmost layer (as shown in the figure above) then click the blue layer to loading new data, and select the file you want the dioverlay (eg pangrango_001_geo.ecw).
  • Storing files in the. Alx, for example, is stored with the name citra1.alg.
  • To open the algorithm, from the menu bar select File, then select Open, select the name of the algorithm are shown.
TWO IMAGE mosaic
  • Open the two images in a different window so as to produce images like this
Foto

  • On one of the select window, window display lights up blue. Then click the [RGB] RGB to open the display algorithm.
  • Activate the text [RGB] RGB and the new window click to copy the file layer.
  • Then turn on the only window, and click the [RGB] RGB to display algorithm.
  • Click the paste icon to paste the previous file layer, and zoom all datasets
  • Will appear as below

  • Foto
  • Do file storage, can be in the form. ALG, res, tiff, or ECw.
Or can also use the following steps:
  • Make sure the file you want to dimosaik be in one folder and have the same projection system.
  • Click blur (image display and mosaic wizard) on the ER Mapper window.
  • Enter any of the files that will dimosaik by clicking open the file and activate the Mosaic all files of this type and Manually set mosaic method.

  • Foto 
  • Click Next to move on.
  • - Enable Cell sizes, Types of data, Number of bands, and Coordinate Systems. Then click Next to start the process.

  • Foto
    Mosaic results will appear after it is complete.
  • If you want to vary the file to be in the mosaic, mosaic type, or otherwise, click on the option that appears to repeat the process.
  •  Foto
  • Click Finish to close the dialog box.
Foto
View Map / image in the mosaic and map / image of the mosaic

















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HOW TO READ AND COORDINATE PIXEL VALUE

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  • To find out the value of pixel image, right-click on the image window and select the Cell Values ​​Profile
Foto
  • Click on the image window, then the pixel value at that point will appear
  • The image has been geometrically corrected coordinate values​​. To display it, right-click on the image window and select Cell Coordinate.

  •    


  • Click on the image window, then the coordinates of the point will appear.



  • SAVING AND OPENING ALGORITHM

    Algorithm is the basic building within ER Mapper algorithm stores all the information necessary to display the data as an image. The information stored in an algorithm includes a data source, the colors used for display, data processing steps in detail. An algorithm is a revolutionary concept that separates the data from data processing. All data integration, data processing options other files contained in the algorithm. All this is created and edited by ER Mapper, ER Mapper which contain different types of data processing algorithms.

  • To keep the algorithm results, from the menu bar select File, then select Save As, type the name of the algorithm, algorithm or by clicking Save to save the algorithm directly or click the Save Algorithm As if to give a new name for an existing algorithm.
  • For example saved as rgb542.alg.
  • To open up the algorithm, from the menu bar select File, then select Open, select the name of the algorithm are shown.
  • In the image of the image will appear with the words    thereon. 542 rgb sentence indicates that the algorithm file being opened is rgb542.alg. while other signs have been described previously..

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Free ArGIS Tutorial Basic

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ArcGIS Tutorial is highly sought by those who want to learn ArcGIS independently. On the mailing list several times a member rsgisforum also questioned it. A search on Google with keywords "ArcGIS Tutorial" always found the foreign-language tutorial (English), while the needs of those who are looking for is in the Indonesian language.


A friend gave me ArcGIS module created by GIS Consortium team Aceh Nias. And the best part of this module is in Bahasa Indonesia. You can see on the front cover right?

ArcGIS Tutorial contents in Indonesian language is quite complete for the basic level (Basic). To detail the contents of this tutorial, I quote the following table of contents, which I took from the module.

CHAPTER I. GEOGRAPHIC INFORMATION SYSTEM

CHAPTER II. INTRODUCTION ArcMap

CHAPTER III. INTRODUCTION ArcCATALOG

CHAPTER IV. rectification

CHAPTER V. MAKE A SPATIAL DATA

CHAPTER VI. Vector data editing

CHAPTER VII. FEATURING SPATIAL DATA

CHAPTER VIII. DATA QUERY

CHAPTER IX. MAP LAYOUT AND PRINTING

CHAPTER 10. SOURCE OF DATA IN ArcGIS

Then Bagimana and where can I get it? Maybe you like it .. pertanyan I myself hesitated to publish it to the public via the internet so that all who need it can get. But with my intention to divide and principled "Not In Eat Yourself" then the module Basic language Tutorial ArcGIS Indonesia is my share to my friends in need. Previously I apologize if anyone objected to what I'm doing this.
Can you see the download link at the end of this post, I was also shared modules made ​​my own ArcView 3.3. I also intend even harder to write about GIS tips and tricks in this blog, because it's been a long time I did not write in this blog. OK, I hope useful ...



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