Multi pointclouds LiDAR profile + export PDF

[maltaesousa]

Who requested this new feature?

cartoriviera, mapnv, sitn

Is your feature request related to a problem?

No

Describe the solution you'd like

1. PDF Export

• User can choose between A4 or A3 formats.
• Scale of the print is chosen by taking in account the actual zoom level and rounding it have a nice measurable scale (ie. 1:50, 1:500, 1:1000 and so on)
• [technical, not an actual option for user] Content of the PDF can either be raster or vector depending on complexity of each export option

2. Multi pointcloud

• User can choose which point clouds are shown in the profile
• n different pointclouds can be shown at the same time
• Only the default point cloud is shown at initialization

The available pointclouds and the default_point_cloud could be read in the config:
https://sitn.ne.ch/pytree_dev/profile/config

In this example, two pointclouds are available: sitn2016 and swisstopo2018. When user checks the box corresponding to a point cloud, the profile can be done with:
https://sitn.ne.ch/pytree_dev/profile/get?minLOD=0%20&maxLOD=6&width=6&coordinates={2558950,%201206060},{2561250,%201206660}&pointCloud=swisstopo2018&attributes=

[ybolognini]

In order to continue our analysis, here are some questions/remarks.

1. PDF export

The exported PDF won't include a 2D map, is that correct?
Is there a need for a legend in the exported PDF?
For your information, we may use a client-side PDF generation.

2. Multi pointcloud

This is what we discussed during FOSS4G.

Two options:
a/ the user can select only one pointcloud (radio button or dropdown)
b/ the user can select more than one pointclouds:
b.1/ one pointcloud is selected --> like today
b.2/ more than one pointcloud is selected --> option "Classification" is unavailable

Note that we need to confirm what is technically necessary to add more than one point cloud to the current viewer.

[gnerred]

1. PDF export :

• No need to include a 2D Map
• No need for a legend (from my point of view)

2. Multi pointcloud -> ok

[remyguillaume]

Estimated for integration in 2.7 LTS.