In the default setting, the application opens with the Layer Control Panel docked to the left side of the viewing area. This panel is used to mange settings for layers in both 1D and 2D models. The layers are organized in expandable/collapsible groups in a Windows Explorer style fashion. If your version does not have all of the modules, some of the layers will be disabled.
The status of the Layer Control Panel tree is saved to the *.xp database. Thus, all layer expansion is remembered the next time the model is opened.
Viewing the Layer Control Panel
Clicking on the Layer tool on the Job, Layer and Mode Control tool strip toggles the (show/hide) attribute of the Layer Control Panel.
When the Layer Control Panel is showing, clicking on the (x) on the right corner of the header will hide the panel.
Layer Control Panel Layout
The Layer Control Panel has two layout modes: docked and undocked. The default layout is docked to the left border of the main XPSWMM window.
The panel may be undocked by double clicking on the header or dragging it to a new location. It may be docked to the left or right border of the main window. When it is undocked, the panel may be resized by moving the mouse over an edge or corner. When the pointer changes to a double headed arrow, depress the left button and drag the edge or side. When the panel is docked, its width may be adjusted by selecting the right edge, holding the left button down and dragging to the desired position.
The layers are grouped. Group headers are indicated by a +/- check. The groups may be expanded/collapsed by clicking on the check box or double clicking on the layer name.
Each layer name is preceded by two graphics. The check box toggles the display of the layer off/on. The second is either an icon for the layer or a locked symbol. When the icon is a filled square, it indicates the current display properties of the layer.
A layer is locked by highlighting the layer name, right clicking and selecting Lock Layer from the pop-up menu. When a layer is locked, it cannot be edited in the graphical interface. Data associated with objects in the layer may be edited. Other tasks are accessed by right clicking on the name of the layer. The menu varies according to the function of the layer.
The boxes preceding the names of the layers indicate their display color. The absence of a color box indicates that the layer’s display properties have not been selected.
The display properties of any layer may be adjusted by moving the mouse over the name of the layer, right clicking, and selecting Properties . Note that this dialog is different for layers that are polylines, polygons or vectors.
Descriptions of layers
|1D Network Layers|
Represent manholes, catch basins, inlets, wet wells, junctions, ponds or outfalls
Text strings representing the name of nodes
Polygons of areas draining to specific runoff nodes (inlets)
Line from centroid of a catchment to a runoff node (inlet)
Represent open channels, closed conduits, pumps weirs, orifices and special structures
Polylines showing layout for a cross section (requires a DTM)
Text strings representing the name of links
Water Level Lines
Polylines use to display 1D and 2D results map simultaneously
User defined annotation
Boxes, brackets or drop shadows of object data and results
Thematic mapping or changing the display properties of objects according to user defined criteria
Polygon boundary of the 2D model, cell location and orientation
Active 2D Areas
Polygon boundaries of the active cells in the 2D model or 2D floodplain
Inactive 2D Areas
Polygon boundaries of the cells excluded for 2D analysis or polygons for the 1D floodplain
Initial Water Levels
Polylines within the 2D Grid which set initial water surface elevation for the given polygon areas
Polylines along active 2D area polygons that share water level with 1D nodes
Polylines from nodes to the 1D/2D interface vertices
Polylines along the boundary between two grid domains which hydraulically connects these domains
2D Head boundary
Polylines where constant or time series head boundaries are specified
2D Flow boundary
Polylines where constant or time series flow boundary conditions are specified
2D Rainfall/Flow Areas
Polygons used to define areas of a rainfall, runoff hydrograph or user defined hydrograph
Polygons of defined landuses
|2D Landuse Reference|
Polygons of defined landuses that is externally referenced during analysis. This option is recommended when your model contains more than 50,000 vertices.
Digital terrain models (TIN)
Polylines indicating topographic boundaries
Polylines indicating locations of gullies
Polylines indicating location of ridges or topographic divides
Polygons indicating areas above the DTM filled to a constant elevation
Dynamic Elevation Shapes
Polygons or Polylines which can modify cell levels based on time or Trigger Points
Points which can be linked to Dynamic Elevation Shapes
Polygons or Polylines which can modify cell levels
MapInfo Interchange Files showing 2D georeferenced error messages
1D Flood Maps
Interpolates an inundation depth map based on an *.xptin surface and 1D open channel link results. Displays peak inundation depth results as well as the inundation extents at each time step
Arrows (vectors) showing flow direction and magnitude for the 2D grid cells
Arrows (vectors) showing velocity direction and magnitude for the 2D grid cells
2D Water Depth
Color coded water depth map of the 2D cells
2D Water Elevation
Color coded water surface elevation map of the 2D cells
Color coded hazard (water depth × velocity) map of the 2D cells
Color coded time indication map of the 2D cells
Plot Output Lines
Lines where 2D time series plots are referenced
Plot Output Point
Locations where 2D time series plots are referenced
Legends for the 2D vectors and maps
Fly through paths
User defined polylines used to describe path for 3D viewer
MapInfo Interchange Files showing 2D georeferenced error messages
ESRI or MapInfo files
.dxf or .dwg files
GIS, CAD, orthophotos, and other georeferenced image files
When the visible radio button is checked, flows (m/s or ft/s) are displayed as vectors. Right click on the layer name to access the properties dialog. Options are:
When the visible radio button is checked, flows (m³/s or ft³/s) are displayed as vectors. Right click on the layer name to access the properties dialog. Options are:
When the visible radio button is checked, water depth (m or ft) is displayed as a vector. Right click on the layer name to access the properties dialog. Options are:
When the 2D maps visible and the Hazard radio button is enabled, hazard level (Hazard = velocity × depth in units of m²/s or ft²/s) will be displayed. Right click on the layer name to access the properties dialog.
Hazard maps are useful for identifying potential locations of severe erosion, inertial forces and locations where humans and other mammals would be swept away by the force of overland flow.