CEDRA

Provides more than 100 menu, button and tool commands for creating and editing point, line, polyline, polygon and curve features, and text strings in a CAD like environment. Because of its robustness, CEDRA-AVcad™ can be thought of as a "lite" COGO or Parcel Mapping product. Functionality includes but is not limited to:

• Point snapping across visible themes, and control snapping tolerance,
  
• Working in feet, meters or varas, and bearings, azimuths or Cartesian directions,
  
• Create tangents, projections and offset features, and intersect lines, curves and polygons,
  
• Transform features from one coordinate system into another,
  
• Translate, rotate, scale and/or stretch groups of features,
  
• Deed transcription with or without tie lines, and adjustment of parcels and traverses by the compass or transit rules, and Crandall or least squares methods,
  
• Deed transcription by processing Aliquot descriptions,
  
• Create irregular buffer zones, and ring / sector polygons emanating from a point,
  
• Mass annotate point, line, curve and polygon features,
  
• Mass import points, lines, curves and polygons from various ASCII file formats.
  

CEDRA-AVcad being used to establish and maintain Street Centerlines

Provides a multitude of geometric commands to assist in the creations and editing of points, lines, curves and polygons, including intersections, tangencies, projections, and other geometric operations. In all, more than 150 commands are available to the user for creating and editing geometric and text features. Furthermore, the user has the ability to create spirals in a variety of methods which is ideal for those involved with railroad companies and the like where spiral definitions are prevalent.

This extension is of particular interest to those involved in the building of base maps, in which geometric command flexibility is desired in establishing precise geometric configurations of existing or new features, and to those in general desiring an extensive suite of commands to solve geometric problems. A three dimensional database is supported.

CEDRA-AVcogo being used to create and maintain various Municipal utilities

Enables the user to create, edit and manage three dimensional (high-rise condominiums) topological polygons of parcels for tax (cadastral) mapping, parcel maintenance and other applications that involve the manipulation of polygons and/or boundary information. Functionality includes but is not limited to:

• Geometric layout of parcel corner and circular and spiral curvature points, boundary sides, polygons, and multi-course tie lines,
  
• Automatic determination of centroids and areas in State Plane, UTM, latitudes-longitudes, etc. coordinates,
  
• Polygon creation within a quadrilateral's rows and columns (Aliquots), and auto-search (tracing) of lines,
  
• Creation of parcel ownership, political boundary and various types of districts, and support of associated tables,
  
• Maintenance of computational and deed record attributes,
  
• Mass conversion of polygon parcels into a topological structure,
  
• Database query and editing, and parcel location by number and area range,
  
• Polygon splitting and joining, and editing of vertices,
  
• Customization of parcel attributes, topological data structure, and PIN's,
  
• Customized templates for map preparation for mass annotation of parcel metes and bounds, PIN's, areas and centroids.
  

CEDRA-AVparcel being used to establish and maintain Zoning polygons

Provides the engineer functionality to perform surveying, COGO, contouring, traverse adjustments, stakeout, road design, earthwork, tax mapping and site modeling applications in an environment that integrates Civil Engineering and GIS. CEDRA AVland™ offers the engineer the ability to take a project from field collection through design, construction and facility maintenance. Functionality includes but is not limited to:

• Define an unlimited number of roadway design criteria,
  
• Design an unlimited number of:,
  
• Horizontal alignments with circular and/or spiral curves,
  
• Vertical alignments,
  
• Generate in mass,
  
• Stationing annotation, o Profile annotation,
  
• Horizontal curve tables, o Vertical curve tables,
  
• Use a variety of cogo tools for,
  
• General geometric design, o Automatic lot generation in accord with local zoning criteria,
  
• Building envelope creation, o Random points/odd stations,
  
• Draft or import typical roadway sections, and transition links,
  
• Generate, based upon design criteria,
  
• Pavement ribbons, o Right-of-way features,
  
• Cul-de-sacs and turnarounds,
  
• Generate fully annotated cross sections, and plan and profile drawings,
  
• Generate contours from random points and/or cross section data, and interface with ESRI's 3D Analyst™,
  
• Strip or extract cross sections and profiles from contour strings and/or 3D polygons,
  
• Compute earthwork with option of creating a formal report, and/or including quantities on cross section drawings.
  

CEDRA-AVland being used to create Contours and Extract Cross-Sections and Profile

Enables the engineer to create the geometric model of a storm water, wastewater or combined system, impose associated loads applying custom peaking factors to average daily contributions in US or SI units. Open channel and closed conduit flows may be computed, system adequacy determined, flow hydrographs generated, and stage-storage curves developed. Over thirty built-in conduit shapes are available, as well as the ability to define custom shapes. Static, dynamic, and backwater analysis with one of the available modelers, CEDRA-AVsand™ or USEPA SWMM (Versions 4.31 and 4.4h). Some of the functionality includes:

• Define the model's geometry interactively, or by importing model data in a variety of file formats,
  
• Introduce loads with direct flow rates, inflow hydrographs, land parcels and/or building footprints,
  
• Database query and editing of hydraulic computational results, inventory features, operational and historic data,
  
• Interactively edit node and pipe attributes, inflow hydrographs,
  
• Interactively edit inflow hydrographs individually or by applying an equation to alter the flows in mass,
  
• Introduce siphons, diversions, parallel pipes and loops,
  
• Graphic display of hydraulic charts and tables, flow hydrographs, conduit and energy grade line profiles, and annotation of pipes and nodes with physical and computational data.
  

CEDRA-AVsand can be used to model Sanitary, Storm and Combined Sewers

Enables the engineer to define the geometric configuration of a water distribution network, establish the materials inventory, introduce supply and demand loads, perform analyses and display pertinent results in graphic and/or tabular format in the US or SI units. Storage tanks, pressure regulating, sustaining and open/close valves, pumps, meters, etc. can be included in the model. CEDRA-AVwater™ interfaces with the EPANET™ (Versions 1 and 2) modelers. Some of the functionality includes:

• Define the model's geometry interactively, or by importing existing EPANET, or Cybernet models, or model data in a variety of file formats,
  
• Introduce inflows, outflows and fire flow loads with direct rates, land parcels and/or building footprints,
  
• Database query and editing of hydraulic computational results, inventory features, operational and historic data,
  
• Static and extended period simulation for an unlimited number of pipes with the EPANET modelers,
  
• Graphic display and/or hydraulic and quality charts and tables, conduit and energy grade line profiles, pressure, grade line, flow and velocity contours, flow direction arrows, and annotation of pipes and nodes.
  

CEDRA-AVwater being used to create and maintain an EPANET water model

Facilitates the editing of feature attribute data and is an ideal tool for those involved with facility maintenance and/or data capture applications, or for those who wish to enhance ArcGIS native table editing functionality. The user creates an ASCII based file, referred to as the Theme Attribute Data File, that contains desired attribute labels and default values or equations for each attribute within a theme to be edited. There is no limit to the number of attributes or themes that can be specified. Using the information in the Theme Attribute Data File the program builds a custom single or multi-column dialog box containing the values for the specified attributes. It is possible for a feature to have:

• All of its attributes stored in the theme's attribute table, or
  
• Some of its attributes stored in the theme's attribute table, and others stored in an unlimited number of associated tables.
  

When the user selects a feature for editing, a customized dialog box is displayed with the specified attribute labels and default values. An attribute's default value may be a specific value, or may be computed as the feature's area, perimeter or from a host default options. Ranges of allowable numeric attribute values, as well as, attribute drop-down lists may be specified. A Map Tips tool is also available providing the user the option of displaying multi-line map tips with user-specified labels to better identify the displayed value.

CEDRA-DataEditor being used to maintain attribute data using a User-Defined Form

Enables the user to create an AutoCAD Drawing Interchange File (DXF file) for all visible features in the current map. Unlike other DXF export utilities, which process only one theme (layer) at a time, the CEDRA-DxfExport™ software processes all visible themes (shapefiles, personal geodatabases, enterprise geodatabases and coverages) from either Data View or Layout View. In addition, the CEDRA DxfExport software will process annotation features and graphic text elements. As such, a DXF file created by CEDRA-DxfExport can include features and text. In processing the visible feature and annotation layers in the map, note the following:

• If a theme has selected features then only the selected features will be processed, if there are no selected features then all features in the theme will be processed. If the option Export Features displayed in the Current Extent is selected then all visible features in the current view will be exported regardless of the feature's selection state,
  
• If there are selected MARKER, PEN, FILL and/or TEXT graphic elements then these graphic elements will be processed (if the user desires) and placed in separate layers in the DXF file,
  
• The name of the theme will serve as the name of a layer in the DXF file,
  
• The user has the ability to select one or more attributes from a theme for inclusion in the DXF file, if desired. When exporting attributes, the selected attributes will appear as "blocks" in the DXF file.
  
• The user has the ability to export classes in a layer's classification as individual layers.
  
• The user has the ability to export a point layer's symbology maintaining the symbology. That is a fire hydrant will appear as a fire hydrant in the DXF file, not as a simple point.
  
• The user has the ability to define a color mapping file ensuring the desired color is maintained in the DXF file.
  
• The user has the ability to create a DXF file that maintains the line thickness for one or many user-specified layers.
  
• The user has the ability to perform exports in a batch environment.
  

CEDRA-DxfExport being used to create a DXF file for the Layout View