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gvSIG-Desktop 1.11. User manual

by Mario Carrera last modified 2013-07-30 16:04


Graphic elements

Operations with graphics

gvSIG can be used to carry out a whole range of operations to prepare the layout of your map.

You can access these tools by going to the "Map" menu then to “Graphics” or by going to the tool bar.

maquetar-un-mapa-en.img/botonesMaquetacion_es.png

The “Graphics” menu can be used for the following:

  • Properties
  • Align
  • Group / Ungroup
  • Simplify the legend
  • Bring to front and send to back
  • Size and position
  • Graphic line (to create frames)
maquetar-un-mapa-en.img/menuMapaGraficos_en.png

Inserting elements in a map

Introduction

gvSIG can be used to add the following cartographic elements to a map:

  • Views
  • Images
  • Scale bars
  • Legends
  • Graphic objects
  • North
  • Texts
  • Boxes

Many of these cartographic elements are closely linked to the “View” document, so that when changes are made in the view, they are shown in the map (changes in zooms, panning, legend modifications, layer organisation, etc.). You can access the different options from the tool bar or by going to the “Map” menu and then to “Insert”.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/menuInsertarElementosMapa_en.png

Legend

The legend represents the visible layers of the ToC in the selected view. If a legend is inserted, it is added in the same order as it appears in the ToC.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarLeyenda_es.png

In the view frame, select the view the legend is associated with. The order in which the legends in the ToC will be added appears in the panel on the right.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/propiedadesMarcoLeyenda_en.png

Scale range

This tool allows you to insert a scale (associated with the view) in the map.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarEscala_es.png

The scale bar dialogue box is shown below:

elementos-que-se-pueden-insertar-en-un-mapa-en.img/propiedadesEscala_es.png

View frame: Select the view, if there is more than one, the inserted scale is related to.

Bar: Select the type of scale you wish to insert (numeric or graphic). By clicking on the pull-down menu, you can see the different options with which the scale to be inserted in the map can be shown.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/escalasTipoDesplegable_es.png

Intervals: Select the number of intervals, what each one represents and the number of divisions to the left of the 0 that you require in the interval.

Scale: You can use this section to make the numeric scale appear above the bar.

Units: This defines the graphic scale units of measurement (metres, Km., etc.).

Labels: You can use this box to select the label colour, font and location (numeric scale, units…).


North symbol
elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarNorte_es.png

If you click on the “Insert “North” button in the tool bar, you can insert a “North” symbol in the map. Place the mouse pointer on one of the vertexes of the rectangle which define the space to be occupied by the symbol, left click, then drag the pointer to the opposite vertexes and drop. A dialogue box appears in which you can choose between several default North symbols.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/propiedadesDelNorte_en.png

You can add new symbols by copying them in the folder:

bin/gvSIG/extensiones/com.iver.cit.gvsig/northimages

of the folder you have installed gvSIG in.

The acceptable format for North symbols is SVG (Scalable Vector Graphics). To add a new North symbol you will need to use an external application (such as Inkscape http://www.inkscape.org). Moreover, in order to ensure that the new North symbol will be correctly processed by gvSIG, it is better to base it on one of the default symbols suggested by gvSIG.


Box

gvSIG has a tool which allows you to insert a box in the map.

If you wish to insert a box, select the following button from the tool bar:

elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarCajetin_es.png

Left click on the map area you wish to insert the object in and drag it to create a frame which will define the future box size.

When you drop it, a window will automatically appear for you to define some of the box properties.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/propiedadesCajetin_en.png/

Image

You can use this tool to insert an image in the map.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarImagen_es.png

You can access this tool by clicking on the “Insert image” button or by going to the “Map” menu bar, then to “Insert” and then to “Image”. If you activate this tool and create the frame to insert the image on the map (similar to “Insert view”), the following dialogue box will appear:

elementos-que-se-pueden-insertar-en-un-mapa-en.img/InsertarImagenPropiedades_en.png

If you click on the “Browse” button, you can select the file path of the image to be inserted. You can insert an image in any of the following formats: jpeg, jpg, gif, png and bmp.

From gvSIG version 0.4 onwards, you can add vector files in SVG format to the map.


Views
Insert a view

You can insert a view in the map by clicking on the “Insert View” button in the tool bar.

herramientas-de-navegacion-por-la-vista/herramientas-de-navegacion-de-la-vista-en.img/botonInsertarVista_es.png

Place the mouse pointer on one of the vertexes of the rectangle which define the view area, left click and drag the pointer to the opposite vertex and drop. A dialogue box appears in which you can define the view-type element properties you have just inserted.

herramientas-de-navegacion-por-la-vista/herramientas-de-navegacion-de-la-vista-en.img/propiedadesMarcoVista_en.png

View: You can use the text box to select the view you wish to insert, if there is more than one.

Active link: If this check box is enabled, any changes made in the view (changing colour, adding a layer…) will be shown in the map. Remember that scale changes will not be affected by this check box, because these modifications are regulated by the scale pull-down menu which appears below.

Scale: Select one of the following three scale types: Automatic: If this option is chosen, any scale change made in the view will automatically be shown on the map.

Keep visualisation scale: In this case, although you change the view frame in the map, the layer associated with the view will not resize itself and will keep the same size it has in the view.

User-defined: This option allows you to define a specific scale.

Quality: This defines the visualisation, as either presentation or draft quality.

Degrees: This allows you to specify a degree of rotation when the view is inserted in the map. This option also appears in the rest of the elements that can be inserted: images, scales, legends and texts.


Exploring the view of the map
herramientas-de-navegacion-de-la-vista-en.img/botonesNavegacionVista_es.png

There are several tools you can use to navigate around the view.

herramientas-de-navegacion-de-la-vista-en.img/botonZoomCompleto_es.png

Zoom in: Enlarges a particular area of the view.

herramientas-de-navegacion-de-la-vista-en.img/botonZoomMas_es.png

Zoom out: Reduces a particular area of the view.

herramientas-de-navegacion-de-la-vista-en.img/botonzoomMenos_es.png

Full extent: Full zoom of the total area included in all the layers of the view.

herramientas-de-navegacion-de-la-vista-en.img/botonManoDesplazamiento_es.png

Panning: This allows you to change the view zoom by dragging the viewing field all over the view with the mouse. Click and hold down the left button of the mouse then move the mouse in the direction you require.


Texts
elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonInsertarTexto_es.png

Texts, which can also be inserted by clicking on the corresponding button in the tool bar or by selecting “Maps” then “Insert” and then “Text”, are defined in the following dialogue box.

elementos-que-se-pueden-insertar-en-un-mapa-en.img/propiedadesTexto_en.png

You can write the text you wish to appear in the map in the text box.

Align: This can be used to select the alignment type (left, centred or right respectively).

Font: This can be used to select the font type. You can also set the font size by activating the corresponding check box and specifying the required size in the text box.

Degrees: This defines the text slope, from the horizontal axis.

Frame: This allows you to define a border around the text you are using.

Text field title: You can also define a title for the corresponding border.


Graphics
Insert graphic elements

You can insert the following types of graphic elements:

  • Points
  • Rectangles
  • Circles
  • Lines
  • Polylines
  • Polygons

All these elements can be inserted by going to “Insert” in the “Map” menu or by clicking on the corresponding button in the tool bar.

Mapas/elementos-que-se-pueden-insertar-en-un-mapa-en.img/menuMapaInsertar_en.png

If you wish to insert a graphic element, left click on the map in the place you wish the graphic element to be inserted in.


Editing graphic elements in a map

When you have inserted a graphic element, you can edit its vertexes. You can access this tool by going to the "Map" menu, then to "Edit" and then to “Edit vertexes” or from the following tool bar button.

elementos-que-se-pueden-insertar-en-un-mapa-1/elementos-que-se-pueden-insertar-en-un-mapa-en.img/botonEditarVertices_es.png

If you wish to edit a vertex in a graphic element, select the element from the map and go to the tool.


Map-inserted element properties

When the elements have been inserted in a map, you can access its properties.

Select the element. Right click to show its contextual menu and select "Properties".

maquetar-un-mapa-en.img/propiedadesMenucontextual_en.png

Aligning

You can access this tool by going to the “Map” menu, then to “Graphics” and to “Align”.

This tool can be used to modify the alignment, distribution and size of the map elements selected.

maquetar-un-mapa-en.img/alinearGraficos_en.png

In the layout: If this button is enabled, the tools in the "Align" menu will use the map limits as a reference. If it is disabled, the selection will be used as the reference.

Alignment: The tools in this section allow you to align the selected graphics (place a series of objects on the same axis) according to your needs (left, horizontally centred, right, top, vertically centred and bottom).

Distribution: This allows you to space out objects at equal distances over a specific area. Match size: This allows you to modify the size of a selected object, using another object as a reference. The adjustments are made based on the largest object in the selection.

The object sizes can be made to coincide in width, height or both.

Space: This allows the selected elements to be “spatially distributed”.

If, for example, you decide to spatially distribute two selected elements in the map (using the active "In the layout" button), the objects will be moved to the same distance from the map’s left and right-hand margins when you click on the first option.

If we click on the second button, the images will be moved to the same distance from the top and bottom margins.


Grouping / Ungrouping

You can access this tool from the tool bar by clicking on the buttons

maquetar-un-mapa-en.img/botonAgruparDesagrupar_es.png

or by going to the “Map” menu, then to “Graphics” and to “Group” or “Ungroup”.


Viewing order

You can access this tool by going to the “Map” menu then to “Graphics” and then to “Bring to front” or “Send to back” respectively or from the tool bar by clicking on the following buttons:

maquetar-un-mapa-en.img/BotonDelanteyDetras_es.png

You can use this option to change the viewing order of the selected elements in the map by bringing them to the front or sending them to the back.


Graphic line

This tool draws a frame around a selected element or elements.

You can access this tool from the tool bar by clicking on the following button

maquetar-un-mapa-en.img/botonlineaGrafica_es.png

or by going to the “Map” menu and then to “Graphics” and "Graphic line".

The available options are shown in the following dialogue box:

maquetar-un-mapa-en.img/ajustesLineaGrafica_en.png

The different options include a check box which allows you to group the graphic line and the object you have inserted in the map so that they make one single element and not two separate ones.

If you click on the “Configure” button, another dialogue box appears which can be used to define the properties of the graphic line or frame to be inserted.

Select the properties and click on the “Ok” button if you wish to use the new configuration or "Cancel" if you wish to maintain the default values.

maquetar-un-mapa-en.img/propiedadesLineaGrafica_en.png

Size and position

You can access this tool by going to the tool bar and clicking on the following button

maquetar-un-mapa-en.img/BotonAjustarTamanyo_es.png

or by going to the “Map” menu then to “Graphics” and to “Size/Position”.

This tool opens a dialogue box which allows you to specify the size and position of the selected element.

maquetar-un-mapa-en.img/tamanyoYposicion_en.png

You can edit the different text fields and modify and specify the object’s size and position.


Undoing / Redoing

These tools allow you to undo actions you have taken on the map or redo the actions you have previously undone.

You can access these tools by clicking on the “Undo” (left-facing arrow) or “Redo” (right-facing arrow) buttons

mapas-en.img/botonDeshacerRehacer_es.png

or by going to the menu bar and selecting the “Map” option.

You can also undo several actions by using the command stack. This tool allows you to view the actions you have carried out on the map and decide which point you wish to continue working from.

The advantage of this tool is that you can undo or redo several actions at the same time. However, you cannot undo a specific action, i.e. if you take six actions, you cannot undo just the fourth one. The sixth and the fifth action will also be undone.

You can also access this tool by clicking on the command stack button in the tool bar

mapas-en.img/botonPilaDeComandos_es.png

or by going to the “Map” menu bar and then to “Command stack”.


Deleting a selection

You can delete any of the elements selected in the “Map” by clicking on the “Delete selection” button in the tool bar.

mapas-en.img/botonBorrarseleccion_es.png


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