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34 | Chapter 3 Working with COGO Points
Introduction
Points that AutoCAD Land Desktop creates are called COGO points. COGO
stands for Coordinate Geometry. COGO points are stored in an external
database and are organized by their point numbers. COGO points have
extended entity data associated with the points that includes point number,
point name, description, elevation, northing, and easting.
COGO point data is stored in an external database file called points.mdb,
which is referenced by all drawings in a project. Because project points are
stored externally, you can reference them without drafting them in a
drawing. Point data can be accessed by multiple people on a network.
To add points to the point database, you can do the following:
■ Create points using the Create Points commands on the Points menu.
■ Import ASCII files.
■ Import data from a Microsoft
®
Access database file.
■ Download from a data collector.
The following diagram illustrates the several ways to add points to a project.
- Land Desktop 2009 1
- 12345678910 4
- GOVERNMENT USE 4
- Published By: Autodesk, Inc 4
- 111 Mclnnis Parkway 4
- San Rafael, CA 94903, USA 4
- Contents 5
- Contents 7
- Contents 9
- 10
- Introduction 11
- AutoCAD Land Desktop 12
- The Installation Wizard 12
- First Things to Know 13
- 14
- Prototypes 14
- Te m p l a t e s 15
- Setup Profiles 15
- Settings 16
- Recommendations for New Users 17
- Finding Information 18
- Help Navigation 19
- Information in Help 20
- Using the Tutorial 21
- Finding Information 23
- Getting Started with 25
- Starting AutoCAD Land Desktop 26
- Environment 27
- Accessing AutoCAD Land 28
- Desktop Commands 28
- To o l b a r s 29
- Establishing Settings 30
- Drawing Settings 31
- Prototype Settings 32
- Data File Settings 32
- Establishing Settings 33
- Working with Projects 34
- Working with Projects 35
- Dialog Box 36
- Management Dialog Box 37
- Working with Drawings 38
- Working with Drawings 39
- Setting Up Drawings 40
- Opening Drawings 41
- Exiting AutoCAD Land Desktop 42
- Working with 43
- COGO Points 43
- Point Markers and Labels 45
- Points and CAD Commands 46
- Setting Up the Point Database 47
- ➤ Point 48
- Establishing Point Settings 49
- Text Settings 50
- Creating Points 51
- ENTER to end the command 52
- Importing Points 53
- Importing Points 55
- Using Point Filters 57
- Editing Points 58
- Point Synchronization 59
- Working with Point Groups 60
- Working with Description Keys 63
- ENTER to insert a 67
- Known Latitude and Longitude 68
- ➤ Geodetic 69
- ➤ Geodetic Calculator 71
- Working with Surfaces 73
- Creating Surface Data 76
- Creating Surface Data 77
- Surface Generation 79
- Building Surfaces 80
- Building Surfaces 81
- Editing Surfaces 84
- Creating Contours 85
- Creating Contours 87
- Calculating Volumes 89
- To calculate volumes 90
- Calculating Volumes 91
- Alignments and Parcels 93
- Working with Alignments 94
- Drawing Alignment Geometry 95
- Making an Alignment Current 97
- Editing a Road Alignment 98
- Drafting Road Results 99
- Alignment 100
- Working with Alignments 101
- Working with Parcels 102
- Drawing Parcel Geometry 103
- Use to locate 104
- Working with Parcels 105
- Managing Parcels 106
- Working with Parcels 107
- Listing and 109
- Annotating Plans 109
- Listing Object Data 110
- Listing Object Data 111
- Listing the Station and 112
- Relation to the Current 112
- Labeling Objects 113
- Style Properties Dialog Bar 114
- Key Concepts 114
- Labeling Objects 115
- Labeling Objects 117
- Editing Label Styles 118
- Labeling Objects 119
- Importing and Exporting 121
- Data in LandXML 121
- Commands 122
- Importing LandXML Data 125
- To import LandXML data 126
- Importing LandXML Data 127
- Introduction to the Civil 129
- Engineering Tools 129
- Civil Engineering Tools 130
- Desktop: 131
- Using Grading 133
- Overview of Grading 134
- Creating a Grading Object 136
- ➤ Settings 138
- ➤ Apply 138
- Editing a Grading Object 139
- To grip-edit a grading object 140
- Grading Object 141
- ➤ Create 142
- Daylighting Commands 143
- Working with Ponds 146
- Working with Ponds 147
- ➤ Define Template 148
- ➤ Set Current 148
- Hydrology and 149
- Hydraulics 149
- Hydrology and Hydraulics 150
- Sample Hydrology Files 151
- ➤ Slope 153
- ➤ Water 153
- ■ Time of travel 154
- ■ Time of concentration 154
- Calculating Runoff 155
- Routing Ponds 158
- Working with the Layout 159
- Using the Layout Menu 160
- Creating Intersections 160
- Creating Cul-de-Sacs 161
- Creating Parking Stalls 162
- Creating Sports Fields 162
- Creating Walks and Patios 163
- Viewing and Editing 165
- Roads in Profile View 165
- Changing the Profile Settings 167
- Profile Data 167
- Editing Vertical Alignments 174
- Roads in Section View 179
- Cross Section Database Files 181
- Working with Templates 184
- Drawing Templates 185
- Defining Templates 186
- Editing Templates 187
- Working with Subassemblies 189
- Sections 189
- Modifying Roadway Slope 191
- Viewing and Editing Sections 193
- Transitioning a Roadway 194
- Transitioning a Roadway 195
- Superelevating a Roadway 196
- Design Data 197
- Designing Pipe Runs 199
- ➤ Edit to display 201
- ENTER to Add the 203
- Profile View 204
- ➤ Edit Graphical 205
- ENTER and selecting its name 206
- ENTER to display the 210
- Creating Plan, Profile 211
- Section Sheets 212
- Laying Out a Sheet Series 213
- Sheet Manager Terminology 215
- Steps Use to locate 216
- Text Label Styles 219
- Plot ➤ Run Batch 222
- Introduction to the 227
- Survey Tools 227
- The Survey Tools 228
- Getting Started with the 229
- Survey Settings 230
- 1. Select the program 232
- 2. Select the data file that 232
- Entering Observations 233
- Entering Survey Data 234
- Entering Observed Data 235
- Using a Data Collector 236
- Using the Menu Commands 237
- Using the Survey Command Line 238
- To use a batch file 240
- Adjusting Data and 243
- Working with Figures 243
- Adjusting a Traverse 244
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