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   MiraMon Map Browser


Contents
Introduction
Basic instructions for the browser
1 Location
2 Legend and layer control
3 Coordinates
4 Buttons
5 View
6 Typical query
Specific instructions
1 Configuration options
2 Locating the area of interest
3 Downloading the area of interest
4 Installing the MiraMon Map Reader
5 Animations
6 Writing StoryMaps
Introduction

A map browser is a portal consisting of a set of HTML pages that allows you to view, query and download layers supplied by one or more Web map servers.
These browsers give users access to cartography and GIS without the need for specialist training in this field or specially-designed software.

The MiraMon Map Browser has been created using technologies that comply with international standards, namely Web Map Service (ISO 19128) and Web Coverage Service, produced by the Open Geospatial Consortium and the ISO.
This gives it interoperability and allows the browser to incorporate information from a variety of servers, even from servers produced by different manufacturers. WMS is useful for displaying layers and for carrying out queries by location (to obtain additional information about a point on a map) and WCS facilitates raster map downloading.



Basic instructions for the browser Top

The browser consists of a set of HTML pages and images. It consists of the following six frames.

Browser frames
1 Location
2 Legend and layer control
3 Coordinates
4 Buttons
5 View
6 Typical query


1 Location Top

The location frame shows the whole area over which it is possible to navigate (location map). The area and position of the viewer on the location map is indicated by a colored box. By clicking on the location map (outside the box), the viewer is relocated and centered on the point that was clicked on. By passing the cursor over the viewer, the projection coordinates and the geographic longitude and latitude are displayed in the coordinates box (panel 3).



2 Legend and layer control Top

The legend panel shows the list of layers available and a description of the categories of each layer. The legend allows you to control the status of the layer viewing, query and downloading options.

It can be divided into different sections, for example:
  • Reference cartography: consisting of a series of layers which allow you to orient yourself, such as municipal boundaries, contour lines, roads, etc.
    The presence or absence of these layers depends on the degree of zoom selected. They are enabled or hidden with this button Desactivar capa. Some polygon layers can be displayed semi-transparently by repeatedly clicking on the check button until it is displayed as: Semitransparencia. When the layer shows the Show categories simbol on the left, this indicates that the layer categories are hidden and can be displayed in the legend by clicking on them. When the categories are displayed, the symbol Hide categories appears with which you can conceal the layer categories once again.

  • Images: A list of images is available which can be enabled or hidden by using checkbox Hide liyer. This type of button indicates that only one image may be displayed at a time. It is possible to hide all of them by clicking on the single radio button selected. When one of the images is enabled, the viewing styles are displayed (if there are more than one) and it is possible to choose between them.
    Visualizing styles

The metadata can be displayed, in a separate browser window, by clicking on the descriptive text for each layer. Metadata.



3 Coordinates Home

This frame shows the coordinates of the projection which are normally used in the study area and the geographic coordinates (longitude/latitude) of the position of the cursor over the viewer or over the location map.

Coordenadas


4 Buttons Top
Zoom in Zoom out Back Overview zoom dropdown list Center view Window zoom Query by location Show animation Configuration options Print Home page Install MiraMon Map Reader Help Catalan Spanish English
(click on the elements that appear on this button bar to obtain information about their functions)


5 Viewing Top

The viewer displays the different layers activated from the legend.
By passing the cursor over the viewer, the projection and geographic coordinates appear in the coordinate box (frame 3). It is also possible to execute the commands for center view, window zoom and query by location by clicking on the viewer and depending on the status of the button bar.

Movement Movement Movement   The triangular buttons at the side of the viewer permit horizontal, vertical or diagonal movement over the layers. The magnitud of jump can be adjusted with the configuration options.
Movement   Movement
Movement Movement Movement


6 Typical query Top

This allows you to relocate the viewer over a given administrative area or a specific zone (e.g. a municipality, region, hydrographic basin, etc). First select the type of object you wish to view from the first pop-up menu (municipality, region, basin, etc). Then select the desired object from the second pop-up menu. Once these two selections have been made, the viewer centers on the area where the object is located and the zoom is automatically adjusted to bring it into focus.

Tipo de objeto Selección de objeto


Specific instructions Top


1 Configuration options Top

When you press the Options button, this dialog box appears and allows you to configure a series of browser functions:

  • Starting point: current coordinate of the lower left-hand corner of the viewer. It can be adjusted to move to a known coordinate.
  • Width and height: These allow you to define the size of the viewer when the automatic mode (fill the window) is deactivated. If this option is enabled, the width and height values are resized so that the view fills as large an area as possible.
  • Magnitude of jump: indicates the percentage of the image that moves when the movement triangles of the viewer are used (frame 5).
  • Coord: this allows you to configure different aspects of the coordinates that are displayed on the browser.
    • Number of decimals: this is the number of decimal digits displayed in the coordinates.
    • Corners: allows you to configure the viewing format of the coordinates that appear at the corners of the viewer. This may be: none, determined by the, projection or in longitude/latitude. In the last case, it is possible to choose between decimal degrees or sexagesimal (degrees, minutes and seconds) degrees degrees, minutes and seconds (º ' '').
    • Current: refers to the coordinates of the position of the cursor over the view or over the location map.
      This parameter allows you to configure the viewing format of the coordinate frame (frame 3). In this case, the viewing formats may be determined by the
      projection, in longitude/latitude or in both. For longitude/latitude, it is possible to choose between decimal degrees or sexagesimal (degrees, minutes and seconds) degrees degrees, minutes and seconds (º ' '').



2 Location over the area of interest Top

It is possible to position yourself over the desired area in any one of the following ways:

As the browser window is of fixed proportions, it is not always possible to obtain the desired area exactly. In this case, it is possible to fall back on the same trick used by MiraMon Professional to obtain the right printable view. This consists in manually resizing the browser window.



3 Downloading the area of interest Top

Some browsers allow you to download cartography at the maximum resolution available using WCS.
It is possible to download any image by pressing the mirarroba (doble mm looking like @ symbol) which appears to the left of the name of each layer of the legend (frame 2). Dialog boxes ask for the desired bands and the format.

With this dialog box you can indicate if you want a cutting of an RGB combination (in JPEG format) or a specific set of bands (in TIFF or MiraMon IMG format).

This dialog box determines the download format. There are two options:

  • Select MiraMon Compressed Map (MMZ) if you wish to work with a version of MiraMon Professional or with the MiraMon Map Reader. With this option you obtain a file that is opened with a double click and can, moreover, be directly overlayed on other layers available from other servers.

  • Select JPEG/GeoTIFF if you wish to obtain the layers in a format compatible with other GIS or graphic design programs. A compressed in ZIP format is obtained which contains the RGB combination in a JPEG (accompanied by a file of MiraMon metadata and a JWP georeference file) or a set of GeoTIFF files (georeferenced TIFF format), also accompanied by TFW georeference files).

The process takes some time (depending on the area chosen). For this reason, at the end of the box the current status of the layer generation process is indicated.

If you only wish to generate a file in order to view it with another computer, you are recommended to use the option and to save the file using the right-hand button of the mouse (as shown in the picture).

As the complete images occupy a considerable amount of space, it is recommended that before downloading them, you adjust the view strictly to the area of interest and only select bands that are necessary.



4 Installing the MiraMon Map Reader Top

If you do not have a license for MiraMon Professional, you must install the MiraMon Map Reader in order to view files downloaded in MMZ format. You can download and install it by pressing the icon or you can obtain an updated version from the Reader website at http://www.creaf.uab.es/miramon/mmr/usa.



5 Animations Top

By pressing the "Show animation" button, this animations window is opened. It allows you to see the images which comprise the same temporal sequence in order, as if you were watching a video. The area loaded in the view is the one used in the animation.

In the pop-up menus in the top part of the window you can choose the temporal series that you wish to see and its style.
Using the buttons in the bottom half of the window, you can control the animation (start, stop, pause, etc).

The images that make up the animation are shown in a vertical strip in the left-hand panel. By selecting or clearing a check box you can enable or disable each image to include it in or exclude it from the animation (this is useful in series of satellite images in which some of the images may contain clouds).



6 Writing StoryMaps Top

Clicking on the map story button opens a grid with the existing stories and at the end of it we find the box to start creating a new story. A new window appears with boxes to write the story title and select a cover image. The next button takes us to the writing window of the body of the story.

The central part is reserved for editing the text. At the top of the editing area we have several text modifier buttons, one to add images to the story, another to synchronize the map with a fragment of the story and a last button to show other buttons. Among these other buttons we find more functions to modify the text and finally we have a button to see and edit the whole story in HTML format.

The added images can be resized using a pop-up that appears after choosing the image. A maximum image size limit of 250,000 pixels (500x500 pixels) is preset to avoid story storage problems. If this maximum is exceeded, it is mandatory to reduce the dimensions of the image in order to be able to include it in the story.

To take advantage of the map we have a function to synchronize a part of the story with the situation and visible layers at a certain time of the map. This means that when reading this fragment of the story, the map will change its layout to show us something that fits the text. To do this, it is necessary to have pre-selected the snippet to synchronize before pressing the button to synchronize it, otherwise a warning message appears to remember it. Once a given fragment of story is synchronized, it is symbolized by a small icon at the end of it.


To finish the story, the End button should pressed. The recently created story will appear at the end of the story grid and will offer the option of uploading it to the Nimmbus to share it with other users and/or saving it for future sessions.