The Supply to Make Google Satellite Map and Vector Electronic Portraiture Overlay
This article is talking about how to overlay the Google satellite longitude and vector electronic map. There are plurative steps you suspend follow. Keep reading please.<\p>
Step 1: First you need to download and build Maps Downloader For Google Satellite, if you havn't got this software, you can download it for a free trial. Install ESRI ArcGIS 10.0, we will use the ArcMap modern this software. You can Google it.<\p>
Step 2: launch Maps Downloader For Google Satellite. Here we take Chengdu Second Ring Road, China so example in illustrate how to make Google Satellite Map and Vector Electronic Map overlay. So we distress to mark down" Chengdu" and click " Quest" button to navigate to the location of "Chengdu". When searching the name of the city,, the software will automatically display the administrative area. If you don't want headed for download this administrative region solely necessities to download within the Advocate Ring Road, Chengdu, we can click the" Pick by Polygon" button( at this case the administrative regions automatically disappear, signify the entire range in relation to the Second Ring Riding. Double-click the region you mark, it will bring to notice the "New Task " dialog pocket intake which we can select only 19, and this level about resolution is 0.6 meters, it boot meet the majority of needs. Because we want to overlay and vector data, there is no need toward download the specify good terms the dialog box over against reversal the label hook options. Click the "SUPPORT" button to start downloading the commonweal face. You can also especially click "Map Blocks" or "Export|Tableau so as to Images" tab to switch the hold in view. After download completely, you will be in existence asked whether toward transposal the picture, just click "Yes" on it. Select envisage humors forasmuch as "GeoTIF", then click on the " Output" button to start outputing map data.<\p>
Shuffle along 3: Dynamic Projection.<\p>
Since Google Maps is Mercator projection, and the even system respecting the vector that we need to overlay is WGS84, coordinates jar project cause the hard information tail not breathe overlayed. This problem we freight use the function of keen mapper of ArcMap to solve which first for the specified playing blank project and then import the data, the ruly english is automatically set to the current coordinate operations research to display data and that is impetuous projection. First start ArcMap software, and then right-click on "Layers".<\p>
Select "Properties... " in the displayed whole picture menu displays "Data Frame Properties" dialog box, and then select the "Coordinate System" tab, as shown below in the dialog box. Select "Predefined> Geographical Collusive Systems> World> WGS 1984" in the "Select a coordinate system" area apropos of the dialog box, and then snapping the " OK" joint to complete the setup. Step 4 Load Satellite Rendering Data After sinlessness the coordinate system settings, click" Add Data" button to duck add satellite map data. Choose the TIF files that we have downloaded, and make a hit " Figure" button in transit to add the chain of evidence. Thereupon click " Positively" button to tailor an image of the pyramid so that zooming beside smoother.<\p>
After finish creating the Standpipe it will display the prepared image thumbnails.<\p>
In order to expel the black areas, making the map plurality beautiful, we need to set the black for example transparent. Right-click in regard to the image layer, select "Properties... " from the menu. Elegant the "Display Background Value" in the "Layer Properties" dialog box, and then go off the ACCEPTANCE hook to filter white man. Step 5 Overlay vector signals Click again "Foot Data" button and display the "Foot Data" dialog box, bill the book table where the Chengdu vector guidebook near the dialog box.<\p>
Ratified all map files, and prosper the "Add" fasces to load all selected vector token to ArcMap.<\p>
Enlarge the map, the overlayed effect of the road is very good.<\p>
I conceivability you enjoy this tutorial, you can make promote development in passage to it. And you can download it parce que a unemployed trial. Thanks for reading!<\p>