How to use Geoportal Philippines

Geoportal Philippines

How to use GP: Map Viewer 1

How to use GP: Map Viewer

The GP: Map Viewer

Toolbar

The Toolbar displays the tools that can be performed on the viewer.

Zoom in This is used for zooming in to the map. The user can also draw a box for a more controlled zooming in.

Zoom out

This is used for zooming out of the map.

Zoom to Extent

This is used to zoom the map to the whole extent of the Philippines.

Measure tool

This allows the user to measure distance or area in the map

Goto XY tool

This allows the user to go to a particular location in the map by encoding coordinates

Buffer tool

Map pane

Available Layers Panel

Loaded Layers Panel

Toolbar



This allows the user to create a buffer from a point, line, circle, or polygon

Location search

This allows user to go to a certain location on the map.

Download This allows downloading of the loaded layers.

Export Map This allows exporting of the current map view along with basemap and loaded layers in PNG, JPEG, or PDF format.

Switch Basemap This provides different basemap options to use. Currently available are Philippine Geoportal basemap, Bing maps, ArcGIS Online, Open Street Map, Google Map, and Ortho Image 2011 (for selected areas only).

Map Pane

The Map pane displays the Base map and map overlays.

Available Layers Panel

Available layers panel list all the available layers that you can use. You can browse thru the layers by Layer Name, by Agency, or by Agency Node.

Loaded Layers Panel

Loaded layers list all the layers that is currently loaded onto the map and their corresponding legends.



Search Layer

1. In the Search textbox , type the topic or keyword (e.g. “school”).

2. A list of matching layers will be displayed.

3. Click the desired layer.

4. Selected layer will be displayed and added to Loaded Layers Panel. Corresponding legend for the layer will also be displayed.



Browse Layer

1. In the Available Layers panel, click the Layer Name tab to display layers sorted alphabetically.

2. Click Agency tab to display layers sorted by agency.

3. Click Agency Node tab to display layers by Agency Node.



Load a layer

1. Scroll through the Available Layers Panel and select the layer to display.

2. The selected layer will be displayed on the map. The layer will be listed in the Loaded Layers Panel and the corresponding legend will also be shown.



Rearrange display order of loaded layers

The loaded layers can be re-arranged to display properly. As a general rule, the following is the best display sequence:

point features line features polygon features

1. In the Loaded Layers Panel, click the up or right button on the right side of the layer to move it

above or below another layer.

Notice the effect of the rearranged layers on the map display.



Remove a Layer

1. In the Loaded Layers Panel, click the x button beside the layer you want to remove.



Set layer opacity

2. Move the slider to adjust the opacity of the layer.

3. The map display will adjust according to the desired opacity.

Filter Data Display

1. In the Loaded Layers Panel, right click on the layer and click Filter. 2. In the Filter Dialog Window, click on the Attribute dropdown box. Select from the list. 3. Click on the Operator dropdown box. Select from the list. 4. Input in the Value textbox. 5. Click the Add button to complete the filtering condition. 6. To add additional filtering condition, select from the And/Or dropdown box and repeat Steps 2

to 5. 7. To remove filtering condition, click the box next to the condition to delete. 8. To remove all filtering conditions, click the Reset button. 9. To execute the filtering condition, click the Ok button. 10. The sample below displays location of public schools with total enrollees > 5000.



Zoom to Layer Extent

1. In the Loaded Layers Panel, right click on the layer and click the Zoom to extent. 2. The map will zoom in to the full size of the layer.

Map Tools GoTo XY tool navigates and zooms to the coordinates (latitude and longitude) specified.

1. Click the GoTo XY button. 2. Input the Latitudend Longitude values in the textboxes. Values should be in the format

Degrees Minutes Seconds separated by space (e.g. 14 32 7.1, 121 2 27.4) or Decimal Degrees (e.g. 14.535305555555555, 121.04094444444445). Click the Zoom Checkbox then click the Go button.

3. The map will put a marker on the specified coordinates.



4. An invalid coordinates will display an error message.

Measure tool provides the distance of the line or the area of the polygon defined by the user. 1. Click the Measure icon to display the Measure window.

2. To measure a line, click the Distance from the Measure Tool dialog. Click on the first point and double-click on the last point. The line distance in kilometers, meters, miles, and feet will be



displayed in the Measure window.

3. To measure an area, click the Area from the Measure Tool dialog. Click on the first point and to the next points until a polygon has been created. Double click on the last point to close it. The area in km2, m2, mi2, ft2 will be displayed in the Map Tools dialog.



Buffer tool creates a zone around an input feature like point, line, circle or polygon at a specified distance.

1. Click the Buffer button to display the Buffer window. 2. To create a buffer around a point, select the Point tool. Click a point on the map. Enter the

desired buffer parameters (value and unit of measure). Click the Buffer button. A zone around the point measured in the specified distance will be created. All the features within the buffer zone will be highlighted and listed.

3. To create a buffer around a line, select the Line tool. Click a point and double click on the last point to create a line on the map. Enter the desired buffer parameters (value and unit of measure). Click the Buffer button. A zone around the line measured in the specified distance will be created. All the features within the buffer zone will be highlighted and listed.

4. To create a buffer around a line, select the Circle tool. Click a point as the center of the circle and drag outward until the desired size of the circle is reached. Enter the desired buffer parameters (value and unit of measure). Click the Buffer button. A zone around the circle measured in the specified distance will be created. All the features within the buffer zone will be highlighted and listed.



Location Search

1. Type the name of the location to be searched on the map. Click the Go button.

2. The map will navigate to the desired location.



Download Loaded Layer

1. Click the Download button. 2. The Download window will appear. Instruction on how to request data is displayed on the

dialog window.



Switch Basemap

1. Click the Switch Basemap button. Select from the list in the dropdown box.

2. The basemap will change based on the selection.

How to use Geoportal Philippines

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