Image configuration - MDT25

13.18 Image Configuration

Resolution: Allow us to set a custom resolution, in pixels, for the screenshot. If the option Keep Aspect Ratio is on, the resolution will maintain the current CAD view's aspect ratio. Varying the resolution will affect the pixel size.

Pixel size: Shows the scale of each pixel in the generated image. For example, for an image which has a visible area of 100x100 meters and a resolution of 100x100 pixels, the pixel size will be 1x1 meters. If the option Keep Aspect Ratio is on, the resolution will maintain the current CAD view's aspect ratio. Varying the pixel size will affect the resolution.

Keep aspect ratio: When it's active the pixel size and resolution are forced to have the same aspect ratio than the CAD view.

Generate Georeference: When active, exports a jpw georefence file along with the jpg image so the screenshot will have the pixel size information and could be drawn or measured on any CAD software that supports georeferenced images. The output image will always be located at the origin X=0,Y=0

CAD Menu

With the CAD menu controls we can manage the CAD view:

Grid: Enable/Disable the grid

Background color: Sets the CAD view's background color.

Layer configuration: Allow us to manage the CAD view's layers. When we click the icon, the following dialog is shown:

Each layer has the following controls:

Visibility: Sets if the layer is visible or not.

Remove: Deletes the layer from the CAD. This is not always possible, there are special layers which can't be removed and whose life cycle is managed by the application.

Layer's name: Allow us to modify the layer's name. There's special layers that can't be renamed.

Line/Point width: Allow us to set the line/point width for the layer. Is bounded between one and ten.

Current Layer: Allow us to select the current layer. Also, layers can be shown or hidden by clicking the visibility icon

Global line width: Sets the line width for each layer simultaneously.

Vertical factor: Sets a vertical scale factor to apply to the heights in the CAD view. Allowed factors are: x1, x2, x3, x4, x5 and x10

Entity Reference Menu

With these controls we can manage the CAD view's entity references:

From left to right:

• Point reference: When enabled, points are considered in entity referencing. Useful to measure distances between points or drawing on points.

• Final Point reference: When enabled, entities vertices are considered in entity referencing.

• Middle point reference: When enabled, middle points of linear entities segments are considered in entity referencing.

• Near Point reference: When enabled, the nearest vertex to the drawing cursor is considered in entity referencing. Vertex could be final point, middle point or any vertex in a linear entity segment.

• Enable/disable references: Sets if entity referencing should be performed or not.

History Menu

With the history menu controls we can undo/redo the changes performed in the super elevation:

From left to right:

• Undo: Undoes the last change in the active super elevation.

• Redo: Redoes the last undone change in the active super elevation.

These controls will be active only when there's an active super elevation with any changes.

Edition Menu

With the edition controls we can perform diverse edition commands on CAD view's entities:

Add vertex: Runs the add vertex command. As first step we must select a linear entity to add the vertex to. If we select the left one, we'll set the left super elevation's percentage. If we select the right one, we'll set the right super elevation's percentage. The vertex will be added at the cursor's coordinates, setting the previous and next vertices according to the X projection of the new vertex (given that in a super elevation the Station is always growing and can't have two super elevation definitions at the same Station)

Remove vertex: Runs the remove vertex command. As first step we must select a linear entity. After that, the entity's vertices will be shown as hotspots and, if we click one of them, the vertex will be removed. It doesn't matter if we select the right super elevation's polyline or the left one, the station will be removed from both sides.

Remove vertices range: Runs the remove vertices range command. As first step we must select a linear entity. After that, the entity's vertices will be shown as hotspots. We have to click two vertices, the first and last, both will be removed along with all the vertices between them. It doesn't matter if we select the right super elevation's polyline or the left one, the stations will be removed from both sides.

Remove vertices in window: Runs the remove vertices in window command. As first step we must select a linear entity. After that, the entity's vertices will be shown as hotspots. We have to set the two corners of the window, all the vertices contained within the window will be removed. It doesn't matter if we select the right super elevation's polyline or the left one, the stations will be removed from both sides.

Measuring and Removal Menu

With these controls we can add measures to the drawing, remove them and remove entities from the drawing:

Measure: The measure command will ask for two points and it will tell the distance between them. A new line will be added to the drawing, along with a text with the line's length, to a special measures layer.

Measure (XY): It's the same as the measure command except that once the command finishes two additional lines with text will be added showing the distance in the X and Y axis between the two selected points.

Remove measures: Removes all the measures from the drawing.

Erase entities: It allow us to select entities and remove them from the drawing. Once we run this command, when an entity is selected, we'll see that it's lines will become dotted, that means that it's selected for removal. Once all the desired entities are selected, by pressing Enter, or using the analogous function in the context menu, the removal is confirmed. Entities can also be removed by selecting them in the CAD view (clicking on them) and pressing the delete key. There are special entities that can't be removed.

Zoom Menu

With these controls we control the CAD view zoom level:

Zoom in: Increases the current zoom level.

Zoom out: Reduces the current zoom level.

Zoom window: After selecting two points, to set a window, the content of the window will become the current view by stablishing the required zoom level and centering the view at the window center.

Zoom extents: Fit all the drawing entities on the screen.

Curvature's Diagram

If we open a horizontal alignment file (EJE) a floating window will appear displaying, it's curvature's diagram.

At the top we have a toolbar with controls identical to the ones in the main window's toolbar. Except for the two last controls to the right:

From left to right:

• Curvature's factor: Factor to use when displaying the curvature's diagram where the curvature is calculated as: Radius / Curvature's factor.

• Text height: Size of the curvature's diagram's texts.

On the drawing each horizontal alignment segment in displayed in a different color: green for lines, red for clothoids and yellow for curves. The texts that are displayed for each segment type are:

• Lines: Line and the segment's length.

• Curve: Radius and segment's length

• Clothoid: Parameter (A) and segment's length

At the window's bottom, there's a status bar displaying the cursor's coordinates (as Station and Curvature) and the active horizontal alignment's file.

Super Elevation's Panel

At the main window's left , the data from the current super elevation is displayed. Additionally, this panel will provide some specific super elevation's tools.

Add: With this button we can add new super elevation definitions stablishing: Station, Left super elevation and Right super elevation:

Super elevation list:

For each super elevation's definition, we'll have a line like this on the list:

The items, from left to right, are:

• Station: The super elevation station. We can double click it and write a new station. The list will be reordered by station after the change.

• Left: The super elevation's percentage at the left side. We can double click it and write a new percentage.

• Right: The super elevation's percentage at the right side. We can double click it and write a new percentage.

• Remove: Removes the super elevation. It's also possible to remove it by selecting it's list's row and pressing the delete key.

When a list's row it's selected the vertex will be highlighted on the CAD view.

Super elevation's tools:

At the panel's bottom right, we can find specific super elevation's edition tools:

Invert: Swaps the super elevation definitions of the left side and the right side.

Offset Stations: It allow us to set a new initial Station for the super elevation, modifying all the vertices stations.

CAD View

On the CAD view we can graphically edit the super elevation:

By clicking on a polyline, it will be selected. Once it's selected, we'll see its vertices as hotspots:

Once selected, if we move the cursor over any of the vertices it will be highlighted (on the CAD view and on the Super Elevation's Panel) and the radial context menu will appear.

Radial Context Menu

When a vertex from a CAD view selected entity is highlighted, this menu will be shown with the possible operations on this vertex:

Edit: It allow us to graphically move the vertex with the cursor.

Add: Inserts a new vertex. The insertion has no restrictions. As we move the cursor, we'll see the result of inserting a new vertex at that location. Once we click, the vertex will be added. We can repeat this process as many times as we want, the command will finish when the Enter or Escape keys, or the analogous context menu functions, are pressed. We have to consider that if the vertex is being inserted on the left side's polyline once the vertex is added only the left super elevation will be defined, the right side will be zero. That's also true when inserting on the right side's polyline.

Remove: Removes the vertex. It can also be removed, once it's highlighted, by pressing the delete key.

More options: It will show the context menu with all of the entity's possible edition options.

Context Menu

Any time that we right click on the CAD view, the application's context menu will be shown:

The edition operations will only appear when we right click over an entity. These edition operations are the same than the ones on the Edition Menu from the toolbar, if we use them from this menu, we can avoid selecting the entity when the command runs, because the target entity is already known.

In a similar manner, in the Entity Reference and Zoom submenus we'll find the commands from the menus with the same name from the toolbar:

If the application it's in an interactive command and the context menu is opened, by right clicking on the CAD view, additional options will be shown for finishing the command, by Enter or Escape.