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NYSAPLS '14

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by

Lemuel Morrison

on 25 January 2014

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Transcript of NYSAPLS '14

NYSAPLS '14
Examples
Imagery
Flat Drafting
"Virtual"
Survey
Putting Points
to Work

Point Clouds in
Civil3D

Civil 3D
Workflow
Point
Clouds
Background
Point Clouds
Airborne
Point Cloud Modelling 101
J R Lemuel Morrison
Outcomes
Point clouds
Sourcing
Software
Workflow




Orthoimagery
Roadways
Building Elevations

Rules
Sign in & Devices to Mute
Get Comfy
Ask Questions at Anytime
Come up at Break
Follow Along on Your Laptop
lmorrison@mercatorgroup.com @mercatorlem
Gadget Surveyor
Marketing
Surveyor
IT Surveyor
Bean Counter
Surveyor
Licensed
Surveyor
What Do Surveyors Do . . . ?
We Measure
Software
Ortho-
imagery
Import
Points
4
Options
Regenerating
Start Using Point Clouds Today
Why . . .
Processing &
Adjustment
IT
Market
Bean Counter

Background
Styles
Coordinate Systems
Process
Why

Easy and accessible to all types
Excellent QA\QC

Large Image MBs
No elevation

1
Datum & Units
Ortho
Images
2
Img Layer
3
mapiinsert
be careful!!! if ortho is in meters, it may incorrectly scale to US Svy Ft
Be sure to input enough significant digits
4
Ortho Underlay
5
Housekeeping
1
Create
2
File Format
3
Getting Around
1
Housekeeping
5
when, not if
Original Data
Registered Data

Point Cloud export for CAD
Point Cloud working CAD

Combined CAD
Data Integrity
Be Careful!!! Point cloud points (i.e. pixels) can be treated as regular survey points
2
Pixels to
Svy Points
3
Export
wblock
date & type
Export
point group
Virtual Survey
& Linework

Best
Practices
Point Clouds
Leica Cyclone
Trimble RealWorks
Faro CAM2

Re Cap
3D Reshaper
PointTools
Civil3D

Cyclone & Cloudworx
Rhino
Solidworks
Sketchup
Modelling
Survey
Aerial Mapping
Flight, AeroTrig &
map creation
Point Clouds
Combined
Laser Scanning
Equipment
Scan Head

Computers & Software
Network & Peripherals
Market
Existing Services
Administraive
Maintenance & Updates

Insurance
Training & Personnel
Workflow
Highway
Rail/Subway
Bridges
Architectural
Preservation
Accident & Crime Scene
Film &
SFX
BIM
Reality
Capital Intensive
Rapidly Changing Technology
Immature Client Base
Skills Shortfall
New Services
Core Competence
Reality Capture
Value-Added Analysis
How . . .
Get Started with Easy Step
Existing Workflow
Existing Gear
3D Model-ling
MeshLab (open source)
Point
Cloud
In a three-dimensional coordinate system, these points are usually defined by X, Y, and Z coordinates, and often are intended to represent the external surface of an object. -- Wikipedia
Pixels in 3 dimensions that capture reality
Terrestrial
Stations
Mobile
Photo - Based
IMP Leica Cyclone
Original
Raw Data
X,Y & Z
Intensity, R,G,B
Other Data
PTS Non-Proprietary
Export
Autodesk
ISD Database
Point Clouds / Laser Scanning &
3-D Modelling
The devil you know
Toolspace
BE CAREFUL !!
CAD
Command Line: mapiinsert

Keep orthos in their own folder with survey data
There must be an corresponding world file (e.g. TFW)
Layer Control -- Freeze \ Thaw
Zoom Level
Layer load and Unload
eTransmit
Next
Steps
E57 Plugin for Civil3D
Feature Extraction Plugin for Civil3D
123D App / Photosynth
MeshLab
Workstation -- Xi Computers
3.4 GHz Quad Core
16GB Ram
NVDIA Quadro 2000 1GB
Solid State 200 GB HD


Laptop
2.5 GHz
4 GB RAM
Standard Video Card
7200 rpm 500 GB HD
Intersection
CAD Drawing: V-12J149-11(intersection) -- V2014
Datum: NAD83 HARN NY Long Iss
Units: US Survey Ft
Command Line: mapiinsert
130211-1(intersection).tif &
130211-2(intersection).tif
Native version was in meters
Scale two objects from 0,0
Factor 3.28083333333333
Make image layer current
Draworder, select objects & send to back
Park
CAD Drawing: V-10J110-01(Park-svy) -- V2014
Datum: NAD83 HARN NY Long isl
Units: US Svy ft
Make Image layer current

Native version was in meters
Scale two objects from 0,0
Factor 3.28083333333333
Draworder, select objects
& send to back
Extra -->
Use 100603DripLine.tif to trace limits of dripline
Facade
Create new drawing

Datum: assumed
Units: metric

Make image layer current

Command Line: mapiinsert
bway-facade(BW-3) &
bway-facade(BW-5)A

Intersection
CAD Drawing: V-12j149-11(intersection)PTS-Meters -- V2014
Datum: NAD83 HARN NY Long Isl
Units: Meters
Style: Greyscale Intensity
Style: Mctr Intensity
Set Points Manually
--> use point groups
Draw Lines
--> use Vd-####- layers
Export/wblock
import point groups to drafting DWG
insert block to drafting DWG
Park
CAD Drawing: V-10J110-02(park)PTS-Meters -- V2014
Datum: NAD83 HARN NY Long Isl
Units: Meters
Style: Greyscale Intensity
Style: True Color
Set Points Manually
--> use point groups
Draw Lines
--> use Vd-####- layers
Export/wblock
import point groups to drafting DWG
insert block to drafting DWG
Extra -->
V-07110-01(Hwy)PTS-Meters
Datum: NAD83 NY East
Units: Meters
Don't trust AutoCAD to convert correctly
Use Layers & point groups to identify virtually surveyed items from field
Conventional
GPS
Point Cloud
Aerial Mapping
Survey
Keep pointclouds in their own drawing
AutoDesk Recap
Use unique layers for virtually derived lines

Use point cloud drawing only for generating linework & points
Vd-ROAD-CURB-_TOP-G
Create a point group
Create Points
Draft linework
Be careful
Use 3-D lines NOT polylines
Survey
use linework to create DTM
Avoid using the Pointcloud
Conventional
GPS RTK
CAD
Analysis & QA\QC


Control
Ground Truth &
Additional Surveying
CAD
Analysis & QA\QC
Control
Point Cloud Acquisition
Registration
Clean & Segmentation
Ortho Imagery
Conventional
GPS RTK
Adjustment
CAD
Survey
Pt Cloud
Drafting
Out Sourced
In house
Residual Reports &
Misc checks
Follow Prezi
bit.ly/19K2SJb

All data is on thumbdrive in class
e-mail me for a zip file
Control
Point Cloud Acquisition
Registration
Clean &
Segmentation
Model
Already Have It
4
Manage
Workstation
Software
PointTools Plugin
Rhino (NURBs) Tool
Point Cloud Navigation

Unify Cloud Before Exporting to PTS
Limited Measurement

Point Cloud
Clipping
Import PTX
Full transcript