Using non-structured Point Cloud data in Recap

00:01

Welcome to the continuation of managing point cloud

00:04

data in recap this objective is using non structured point

00:08

cloud data.

00:09

And it is the third and last objective in this course,

00:14

we learned in the previous objectives.

00:16

There's two different types of scan data.

00:18

We talked about structured scan data.

00:21

And now let's look at non structured data

00:24

non structured data is scanned data

00:27

from Ariel mobile and photo processed data.

00:30

Most of your infrastructure related

00:32

data is going to be of this type the structured scan workflow

00:38

and recap begins with the import of the cloud data

00:42

and setting up the project settings.

00:45

Then the automatic index and registration happens.

00:49

And now we can perform visualization measurement

00:52

cleanup and data elimination tasks

00:55

before we create and export the regions

00:58

to be used in Autodesk and other software solutions.

01:02

We begin the workflow by setting the project folder

01:05

location and name.

01:07

Then we'll add the point cloud data files

01:10

and set the appropriate geographic coordinate system.

01:13

Here we'd be let's look at how we begin by setting up

01:16

the project folder location and name adding the files

01:20

and setting the coordinate system.

01:22

In recap.

01:23

We'll click on Import the point cloud

01:25

will browse to designate the folder location

01:28

and give our project a name next, we either drag and drop

01:32

or browse and open the point cloud files.

01:36

Here I have seven l.a. s point cloud data files.

01:40

I'll click on the advanced tab so that I can

01:43

look at the coordinate systems.

01:46

We will load up the Autodesk coordinate system library.

01:49

And select the appropriate coordinate system.

01:58

Next, we'll click on Import the files

02:00

to begin the automatic scan and registration process.

02:06

Note that the little icon that looks

02:07

like a web that is associated with each of the import files

02:13

indicates that the files are unstructured point cloud data.

02:19

Let's review the advanced the settings decimation indicates

02:23

the level of detail and if we look

02:25

at the geographic coordinate systems

02:27

we notice that we have a current and a target.

02:31

This means that we can transform the point cloud from one

02:35

coordinate system to another.

02:37

Using recap what is decimation.

02:40

It's good to know about decimation because this

02:43

represents the level of detail of the points in our point

02:46

cloud to show the size of the decimation.

02:49

The picture on the right shows a

02:54

This is the same as 10 centimeters

02:55

too much data in point clouds will

02:58

affect the performance and the overall project efficiency.

03:02

In our example, we've set the decimation

03:05

to the maximum amount of 100 millimeters.

03:09

By knowing the precision of the project

03:11

we've taken the first step to make our data little bit

03:14

more efficient.

03:15

What exactly is indexing and registration.

03:18

The imported files have to be indexed.

03:21

And registered so they can be used in recap.

03:24

This can take some time and a progress bar at the bottom

03:27

will indicate the activity.

03:30

Note that suspending the project is the same as canceling out

03:34

of the project indexing reads the raw point cloud file,

03:38

and it converts it to the proprietary recap

03:42

file registration merges or stitches

03:45

multiple scans into one aggregated point cloud.

03:50

Now automatic registration happens

03:52

for our non structured type data in the previous objective.

03:57

We looked at manual registration, which

03:59

we did for structured point cloud data,

04:03

we can view the location of each of the scanned data files

04:07

and check for the ability to possibly do some data deletion.

04:12

This will improve the project efficiency

04:14

by reducing the amount of overall point cloud data.

04:18

Here we expand the scan locations

04:21

and see how many points are in each scan

04:28

and then we can turn the visibility on and off.

04:32

We can see that these files are not

04:34

needed for our project area, which is in the lower portion.

04:39

And so I can easily eliminate this data,

04:44

we'll remove the scan data.

04:47

And it will also remove the points.

04:49

We'll do this for three of the seven files.

04:54

Next, we need to review our point cloud data.

04:56

We need to check our measurements

04:58

and verify the coordinates.

04:60

So that we know that the units and the scale are correct.

05:03

We need to do this with both horizontal

05:06

and vertical measurements.

05:08

We also need to identify the northern and eastern

05:11

coordinates to validate that our point cloud is

05:14

in the proper coordinates.

05:16

In the first objective of this course,

05:18

we learned how to take those measurements.

05:21

Next, we need to create regions.

05:24

So that we can manage our point cloud even more efficiently

05:28

will create regions with data to identify data to keep

05:33

and data to remove in the scan locations.

05:37

We can see the remaining four original l.a.

05:39

s files all of our point cloud data

05:43

resides in the unassigned point category.

05:46

The unassigned point category always gets exported.

05:50

So I'm going to make a region using the fence option.

05:56

Once I've selected the fence.

05:58

I create a new region and I'm going

05:60

to name it the development area.

06:02

This is the area of our interest for our project.

06:06

Notice I put the word keep on it.

06:09

I can turn this on and off.

06:11

So we can see the area that we want

06:13

to keep the next region I'm going

06:15

to make again, using the fence.

06:18

Option I'm going to call this region, the remove region.

06:35

Now we can see both of these regions.

06:38

And I'm going to delete the remove region, which

06:41

is the point and the region itself.

06:44

Now what this leaves us with is two

06:46

regions the unassigned point region, which is very tiny

06:51

and the development region.

06:54

I will browse to the location for these files

06:57

and the name of the ECP and the RC s

07:00

will be the names of the region.

07:03

I'll check the unification settings.

07:06

And again, make it the maximum of 100 millimeters

07:09

and then we'll select unify to export the regions

07:15

and here is how the resulting point cloud files

07:18

look in a folder structure.

07:20

We have the development area.

07:22

Keep ECP and that automatically creates

07:26

to support folder of the same name.

07:29

And inside that folder, we see the RCS file.

07:33

The actual point cloud data.

07:35

These experts point cloud regions can

07:37

be used for detailed design and federation

07:40

applications such as civil 3D InfraWorks rivet Navisworks

07:46

and even in autocad and just a final note for those of you

07:50

that are using BIM 360 docs we can store and share point cloud

07:56

data, but it's not visible in the BIM 360 large Model Viewer.

08:02

This includes the last objective in our managing point cloud

08:06

data and recap course.

Video transcript

00:01

Welcome to the continuation of managing point cloud

00:04

data in recap this objective is using non structured point

00:08

cloud data.

00:09

And it is the third and last objective in this course,

00:14

we learned in the previous objectives.

00:16

There's two different types of scan data.

00:18

We talked about structured scan data.

00:21

And now let's look at non structured data

00:24

non structured data is scanned data

00:27

from Ariel mobile and photo processed data.

00:30

Most of your infrastructure related

00:32

data is going to be of this type the structured scan workflow

00:38

and recap begins with the import of the cloud data

00:42

and setting up the project settings.

00:45

Then the automatic index and registration happens.

00:49

And now we can perform visualization measurement

00:52

cleanup and data elimination tasks

00:55

before we create and export the regions

00:58

to be used in Autodesk and other software solutions.

01:02

We begin the workflow by setting the project folder

01:05

location and name.

01:07

Then we'll add the point cloud data files

01:10

and set the appropriate geographic coordinate system.

01:13

Here we'd be let's look at how we begin by setting up

01:16

the project folder location and name adding the files

01:20

and setting the coordinate system.

01:22

In recap.

01:23

We'll click on Import the point cloud

01:25

will browse to designate the folder location

01:28

and give our project a name next, we either drag and drop

01:32

or browse and open the point cloud files.

01:36

Here I have seven l.a. s point cloud data files.

01:40

I'll click on the advanced tab so that I can

01:43

look at the coordinate systems.

01:46

We will load up the Autodesk coordinate system library.

01:49

And select the appropriate coordinate system.

01:58

Next, we'll click on Import the files

02:00

to begin the automatic scan and registration process.

02:06

Note that the little icon that looks

02:07

like a web that is associated with each of the import files

02:13

indicates that the files are unstructured point cloud data.

02:19

Let's review the advanced the settings decimation indicates

02:23

the level of detail and if we look

02:25

at the geographic coordinate systems

02:27

we notice that we have a current and a target.

02:31

This means that we can transform the point cloud from one

02:35

coordinate system to another.

02:37

Using recap what is decimation.

02:40

It's good to know about decimation because this

02:43

represents the level of detail of the points in our point

02:46

cloud to show the size of the decimation.

02:49

The picture on the right shows a

02:54

This is the same as 10 centimeters

02:55

too much data in point clouds will

02:58

affect the performance and the overall project efficiency.

03:02

In our example, we've set the decimation

03:05

to the maximum amount of 100 millimeters.

03:09

By knowing the precision of the project

03:11

we've taken the first step to make our data little bit

03:14

more efficient.

03:15

What exactly is indexing and registration.

03:18

The imported files have to be indexed.

03:21

And registered so they can be used in recap.

03:24

This can take some time and a progress bar at the bottom

03:27

will indicate the activity.

03:30

Note that suspending the project is the same as canceling out

03:34

of the project indexing reads the raw point cloud file,

03:38

and it converts it to the proprietary recap

03:42

file registration merges or stitches

03:45

multiple scans into one aggregated point cloud.

03:50

Now automatic registration happens

03:52

for our non structured type data in the previous objective.

03:57

We looked at manual registration, which

03:59

we did for structured point cloud data,

04:03

we can view the location of each of the scanned data files

04:07

and check for the ability to possibly do some data deletion.

04:12

This will improve the project efficiency

04:14

by reducing the amount of overall point cloud data.

04:18

Here we expand the scan locations

04:21

and see how many points are in each scan

04:28

and then we can turn the visibility on and off.

04:32

We can see that these files are not

04:34

needed for our project area, which is in the lower portion.

04:39

And so I can easily eliminate this data,

04:44

we'll remove the scan data.

04:47

And it will also remove the points.

04:49

We'll do this for three of the seven files.

04:54

Next, we need to review our point cloud data.

04:56

We need to check our measurements

04:58

and verify the coordinates.

04:60

So that we know that the units and the scale are correct.

05:03

We need to do this with both horizontal

05:06

and vertical measurements.

05:08

We also need to identify the northern and eastern

05:11

coordinates to validate that our point cloud is

05:14

in the proper coordinates.

05:16

In the first objective of this course,

05:18

we learned how to take those measurements.

05:21

Next, we need to create regions.

05:24

So that we can manage our point cloud even more efficiently

05:28

will create regions with data to identify data to keep

05:33

and data to remove in the scan locations.

05:37

We can see the remaining four original l.a.

05:39

s files all of our point cloud data

05:43

resides in the unassigned point category.

05:46

The unassigned point category always gets exported.

05:50

So I'm going to make a region using the fence option.

05:56

Once I've selected the fence.

05:58

I create a new region and I'm going

05:60

to name it the development area.

06:02

This is the area of our interest for our project.

06:06

Notice I put the word keep on it.

06:09

I can turn this on and off.

06:11

So we can see the area that we want

06:13

to keep the next region I'm going

06:15

to make again, using the fence.

06:18

Option I'm going to call this region, the remove region.

06:35

Now we can see both of these regions.

06:38

And I'm going to delete the remove region, which

06:41

is the point and the region itself.

06:44

Now what this leaves us with is two

06:46

regions the unassigned point region, which is very tiny

06:51

and the development region.

06:54

I will browse to the location for these files

06:57

and the name of the ECP and the RC s

07:00

will be the names of the region.

07:03

I'll check the unification settings.

07:06

And again, make it the maximum of 100 millimeters

07:09

and then we'll select unify to export the regions

07:15

and here is how the resulting point cloud files

07:18

look in a folder structure.

07:20

We have the development area.

07:22

Keep ECP and that automatically creates

07:26

to support folder of the same name.

07:29

And inside that folder, we see the RCS file.

07:33

The actual point cloud data.

07:35

These experts point cloud regions can

07:37

be used for detailed design and federation

07:40

applications such as civil 3D InfraWorks rivet Navisworks

07:46

and even in autocad and just a final note for those of you

07:50

that are using BIM 360 docs we can store and share point cloud

07:56

data, but it's not visible in the BIM 360 large Model Viewer.

08:02

This includes the last objective in our managing point cloud

08:06

data and recap course.

Using non-structured data in Recap - Exercise

Note: The complete exercise data is contained in 3 .zip files.

Task 1: Import and index .LAS point cloud data files into Recap

  1. Start a New Project in Recap or Recap Pro and select Import Point Cloud.
  2. Type in a Project Name of your choice and then select the folder where you want to save this new project. Click Proceed.
  3. Drag and drop the 7 exercise point cloud data files. Alternatively, you can browse to them. The files are .LAS file types.
    • project_group1_densified_point_cloud_part_1.las
    • project_group1_densified_point_cloud_part_2.las
    • project_group1_densified_point_cloud_part_3.las
    • project_group1_densified_point_cloud_part_4.las
    • project_group1_densified_point_cloud_part_5.las
    • project_group1_densified_point_cloud_part_6.las
    • project_group1_densified_point_cloud_part_7.las
  4. Select the Advanced Tab and set the Decimation Grid to 100 mm.
  5. Set the coordinate systems, the coordinate system dropdown list is in alphabetical order, scroll down to find these:
    • Current: CO83-CF
    • Target: CO83-C

      https://files.upskill-dev.autodesk.com/public/CSO_Content/Course-GLPCE2ECM-Existing-conditions-modeling-for-civil-projects/Module-CE-CBEC0003-Managing-Point-Cloud-data-in-Recap/CE-CBEC0003-U4-image001.jpg

  6. Click Import Files. This will take several minutes.
  7. Click on Index Scans.
  8. Click on Launch Project.

Task 2: Create a Top view state

  1. Use the Nav Cube to set the view to TOP.



  2. Open the Project Navigator by clicking on the stack icon in the lower left.



  3. Hover over the View States collection and click on the plus symbol.
  4. A new view state is added. Double click on the name to rename it to Top.

Task 3: Verify number of points and toggle on and off scan locations

  1. Expand the Scan Locations collection. Each of the individual point file imports is listed.
  2. Hover over the file names so that you see the number of points in each file.
  3. Toggle the visibility off and on for each scan location using the eye symbol icon.
  4. Notice that three of the scan locations are in areas that are not needed. And they should be removed to make the point cloud smaller. Remove three unused scans by selecting the X symbol.



  5. Select Remove Scan to verify that you want to remove all of the points in the scan. Remove the scan locations for:
    • _part_5
    • _part_6
    • _part_7

Task 4: Create regions for data to keep and data to remove

  1. Hover over the Window Select icon to fly out the selection options. Click on Fence.



  2. Carefully pick to select the area of the point cloud to keep for use in our design project. Double-click to finish the selection.



  3. Hover over the Region icon and click on New Region.
  4. Name this region: Development Area – Keep.
  5. In the Project Navigator in the Scan Regions collection, turn off the visibility of this newly made region.
  6. Use the window selection tool to select the remaining point cloud. Create a new region.
  7. Name this region: Remove.
  8. In the Scan Regions collection, select the X symbol.
  9. Click on point + region.

Task 6: Save and optimize project

  1. Hover over the Home icon to fly out the menu items. Click on the save icon.
  2. Select Optimize.

Task 7: Export point cloud

  1. Hover Scan Regions header in the Project Navigator and click on the export icon.



  2. Select the .RCS file format.
  3. Browse to the folder location where you want to place these export files. Each region will create an RCS file with the name of the region.
  4. Click on Unify Settings and set the Refine Grid spacing to 100 mm.
  5. Each region will create an RCS file with the name of the region.
Was this information helpful?