Lesson 10.1. LiDAR LAStools. 3D model. Hillshade. SASplanet.

[Music] this is lesson 10 and the topics for this lesson are going to be lighter light the tension and ranch in class tools in quantum GIS working under diversion 2.18 point 8 t running under windows 7 ultimate how to set up plus 2 in quantity is processing options providers tools for later data activate plus 2 folder last two processes plus view last ground plus high plus classify blast to them working with last tools outside of one to das blast to them and blasts to them digital elevation model BPM 3d model to GIS to 3GS sighs planet contour lines raster extraction concern install attacking terrain analysis create hair shape and also the websites we are going to this today are going to be rapid Palazzo the me8 Canadian Eliza data sources of free and open data and country of gram per year Alberta hello guys I'm welcome back to my channel today we are going to be working with a lighter and lighter what is lighter lighter it's a cloud of points points with a different distance and different colors but yes points [Music] as these points has different distance we can create a 3d models like this one before to start let's go to watch a very short introduction about lider leather is an acronym of light attention and ranging it is a remote sensing technology used to measure distances lighter used as a light to measure the distance between the sensor and the object on the surface calculate the distance it is necessary to know the velocity of the line and home at stand took the travel to the object on the surface and return back to the liner sensor pilot system as the next component was resource and lots of detectors the laser source generates the energy of the closest the massive effector detect the last light pulses that are reflected by from the target object tell me this electronic instrument records the exact times the laser pulse lives and returned to the colossal detector Global Positioning System GPS the global positioning system provides accurate geographical information regarding the position of the sensor inertial measurement unit I am you and every records the precise orientation of the surcin it's white unset every moment computer the computer register all the data and controls the system works properly first return second guitar and clearer right here the first return is the faster one to achieve the light sensor receiver and the third return is the last one do it till the longest distance we can classify the data according to the returns hello everybody this is lesson 10 and today we are going to be working with lighter okay first let's good to see what options we have with quantum GIS to work with later first of all we have to go to processing this button here but if you can see this option at the bar tools it is because you have to install that plug-in okay then you have to go to plugins first option remember you have to be connected on internet to download the plugins then here right processing as you can see here the option is already click and that's really the reason because I can see the bottom here right but if you don't have this option click you are not going to see anything here okay then in processing go to options in options goes to providers okay and here at the bottom you have tools for lidar data okay click here and we have a couple different options fujian and last tools we are going to work with this option the last one last tools okay then first we have to go to to close this one we have to go to Google because we want the last version for last tools ok then yes Google the name last tools and the first link this one is the one we want ok just click and as you can see here you have to click this bottom and that's it that's the last version safe it's not going to take longer but maybe I'm going to pass the video faster ok it's already complete I'm going to cut and I'm going to create a new folder with last tools I'm going to page inside this folder and I'm going to strike here now this step is a very important one if you don't want to have errors with last tools ok what I'm going to do is just cut this folder you know we have this one inside this folder you have this one yes cut this one and we are going to pay in paid in our local disk ok the main one in my case is the letter C then double click and I'm going to page here ok that's it very easy okay then close close and let's go to open quantum GIS and now we are going to activate the option to work with last tools okay Darwin processing options providers go to the bottom tools for lighter data then click the box for act activate and here in last tools just click over here and is going to appear this option okay then we have to go to our computer it was in local this disk see double-click and just select the folder you want and that's it and then press ok as you can see is going to appear this message telling you there is something wrong ok it doesn't matter yes ok ok close close and I believe is going to work ok that it's a common error but the software used to work ok ok now we have to go to processing click on this button toolbox and now we have these options here as you can see we can not see the the option for Collider tools ok we are going to to do some things let's go to see what is going on here everything is ok let me see him okay looks like this one is not activate go to repeat everything that it's spraying our month sometimes it doesn't work okay but yes you have to do again and again okay until the software recognize the last tools let's see what happen now okay as you can see now we have over there tools for lighter data okay and this is the last tools okay all the things we can do last tools are not totally free okay there are some restrictions let's go to see the terms of the license plus tools here the license there are some options we can use totally three even they are open-source other tools are just three like this ones but they are not open source and other tools you need a license okay but if you are using gas by hobby or you are using for educational you can use these tools but sometimes there are some restrictions okay okay let's go to now don't let some information about lighter if you google here for example three lidar Alberta and go to the first option in this website you can see some resources okay for example here for the province of Alberta we have all these areas with lidar for free okay then let's go to go to gram per year this option the first one then here we have to go here looking for lighter then click here you have a map then you can select where area you won okay I'm going to pick up an area with Weaver because we are going to get on topography there is going to be more nice [Music] there is a river there [Music] and also here there are some buildings I'm going to download this period here number 15 you have some information about the file here I'm going to select the first option okay [Music] okay we have a ratify here open it's not a very heavy one property is Missy that's forty forty three megabytes that's not too much cat he already created the folder base here and I'm going to strut here okay we have some files inside as you can see we have this one last this one this one this one and this one okay we know already about the metadata it's very important to check what data we have for this file okay we have to pay attention for the projection okay in this case is UTM zone 11 not 83 and you have more information here if you want to read also the kind of file we have in this case is last ok but also could be last finish with the set it means the file is compressed ok then you have to - compress and you are going to have the last ok let's go to see the file ok we are going to work with this file here in the options at the sorry catalyst tools we have to go last tools this option here sell at last view then select the file lesson 10 writer is this one open and run ok we have the information there as you can see this this lighter information it's a classified already looks like the classification is just for vegetation and ground ok you can see that's a 3d model ok you can see the vegetation there [Music] okay and the tool is plus B where okay then if you click right on the screen here you are going to see the options you have you have all these options okay then for example we can classify the information according to the elevation and it's going to give us different colors according to the elevation we can classify also in a different color for example on blue one and a yellow one okay and also there are all different kind of classifications for example by intensity that is good to see a little bit hole looks like the side you know it's the closest one to the real color also we can classify according to the recharge first return second return first return the return okay it is very easy to suppose the red one are the first return the there are the vegetation the trees okay and the yellow ones are the vas return okay is the ground the river here in this case okay okay let's go to live as an elevation also we can classify as a fly line then let's go to live this one then other way we can classify the information is for example if we want to see just the vegetation or if we want to see it as the the water or the buildings or just the ground as you can see here okay but as I said in this kind of file we have just the soil our vegetation okay that is for free okay and for example if you pay for the file maybe the file is already classified with all the information okay but it's not this case and sometimes also the file it's not classify and you have to classify the information okay let's go to see for example the ground this one is just the ground okay and also we can see it will want as the vegetation this is the vegetation let me change the color color for a blue one as you can see here too if you want to change the options to manage inside the lidar file you have to press a space and these options is going to change here okay for our different options that the tools you have to use to move okay now I'm going to make soon then I have to go too soon okay you can move then as you can see here there is a kind of building okay but it's that one it's classified as a vegetation also if we put here vegetation now we have Justin vegetation and you see that one it's need to approach more we need to move this one a little bit the beginning it's a little bit confused to use the the tool okay but after a while okay there is a building and it's classified as a vegetation okay we can change that one I'm going to show you the Google Earth okay this building I believe is this one here this building here okay I'm going to try to put the same orientation and then we can make a better idea what see you now okay I'm going to go back with the zoom going to move this one okay that's orientation we have one building here one here and one here is these three buildings here I'm going to show you this one is this one this one is this one and this one is this one okay even for this one here is this one here okay and all these lines here are the cars or trucks or I don't know why is that okay but everything is classified as a vegetation okay okay more things there's a really hard to move with this one okay we see the classifications for water there is nothing because it's now classified okay it's just to classify vegetation and ground buildings nothing [Music] growl okay we can see the ground and that ones are the buildings okay this one this one is the tracks of the other cars we saw here is the river is the road more things okay that's it then these other kinds of classification according to the the flies for example you can play and check every information 0 1 2 3 here that yes there are a couple of flights 1 & 2 ok I am pressing pressing pressing the buttons on the keyboard okay then let's go to select all returns okay more options okay this is number of pulses Sam pulses 50 pulses other pulses then that one is you want to race the lines okay you can play with this kind of stuff then an important tool is this one but I'm I am working actually in a in a build tool machine as you can see here at the top okay and the memory run for the beautiful matching machine are nor really good okay then when you are working with lidar files they are really heavy because you are creating a 3d models and it's hard for the software for the hardware I mean to to manage that kind of information if you are working with a virtual machine right then what I'm going to do is just a section of an area then I'm going to work with that section because that one is going to be a smaller and it's going to be more easy for the machine to manage the information okay to make a section you have to press the letter X on the keyboard okay then you have to select the area you want you see this red rectangle here then I'm going to mark here I'm going to select an area then i'm going to press again the let the letter x okay that's the area we are going to see now sorry there is the a few trees aren't the buildings okay I'm going to Maysoon okay you can see the buildings there and some vegetation here some trees buildings vegetation building okay now I would like to come in this option here the triangulate that's a very important because the software is going to make a team okay TI n okay click well yes a little bit and we have this regulation already complete okay I'm going to select for example here water I said like water because there is no information and in this way I can see well the triangulation ok the 3d model because there is no information okay as you can see now you can see better the buildings and the cars here the tree is okay that's a very interesting tool that's relation if you want to remove the triangulation yes press Shift + T again I disappear okay then go to show all returns okay and that's it for the triangulation okay also more options okay with these tools here we can classify the points okay I'm going to show you for example in this case ground it's a brown color and vegetation it's a green color okay but for buildings is an orange color let's go to classify some points okay then you have to select building here go here and make a if you press the D key equal the the points are going to be bigger you see okay now I'm going to make assume okay I have to take out this option I'm sorry okay make a make a mess [Music] until here for example going to move a little bit this one to see well the building something like that and now I'm going to press here reclassify and we to select building making a square here [Music] select all the points you believe is the building okay then here and you have to resist there okay now we have the building there okay also for the other ones the ones over here you can do the same look here buildings making a square here and you can classify this one as a building okay the problem it's we don't have the license to use the software and that information it doesn't keep inside okay well if I close this one now for example and I open again you see we we don't keep that information is because we don't have the license okay but you know there is this option okay to request classify the points also we can change the color pressing the letter C okay you can see all these options here there sure steps indicating style lighter okay equal you see to change the size of the of the pixels I of the points now we are going to do some algorithms we are going to use some tools okay okay before to process an information I would like to say that I am a beginner on lider okay I started to use last tools yes a few months ago okay I don't have too much experience right where I'm trying to do is to follow the instructions we have some instructions inside the folder in last tools to use the algorithms okay if you go to the bin here you have all the garrisons and I believe to classify the buildings and trees we can use this tool last classify okay and we have the instructions here how to use this tool okay we have an example here okay I'm going to try to follow these examples a little bit right in order to classified information because as we said before let me show you again last view here a pen okay we have the classification just for ground ambition but we don't have the buildings and we have a lot of points here we can do that one manually as I show you before right with these tool buildings right may here [Music] square right then registered information right and you are going to create the buildings right then when you go here and render only buildings for example okay you have to build in there and you have the vegetation right on the soil and I'm in the ground okay but we can do that one manually building by building right we'd like to use a algorithm that classify everything with the software okay daddy's so what I'm going to try to do now okay then in order to do that one I am going to follow these instructions here okay then what I'm going to do is to run these three process and it's good to see what is the result okay then first we are going to do last ground last ground is this organism here okay we are going to select our fold over file I'm not going to select any of these ones because we have already the fight with UTM coordinates and distance are in mirrors okay going to select this option and I'm going to select extra fine okay I'm going to put output output going to be less than 10 and I'm going to call this file as ground save I'm going to run the process and I'm going to pass the video faster because the process sometimes is very slow okay okay the process is already complete then let's go to process the other algorithm we did already last ground now we are going to do this one last faith is this one here let me check this one let's go to select last round because here has he said we have to process well you can with this document okay and you are going to see what I'm doing now and I'm going to select this one open is this algorithm and I'm going to change anything to keep in the same but now the name is going to be save run the process okay the process is complete then let's go to do the last one the last one is going to be the classify this one mmm salad the file is going to be this one now open save us I'm going to put here class C safe okay that's completely good to see now [Music] okay as you can see now we have some buildings there the orange one okay I believe the classification could be better but as I said at the beginning I don't have too much experience with last tools okay but now we can classify the information in these three vegetation soils and buildings is good to put the ground right there as you can see there there are some points are above the ground they are buildings there you see there these points here okay maybe at the future we can do one more video if I know how to do this you're better okay but that's an introduction okay now what I'm going to do is I want to pass this information I'm in the ground just the ground to a digital elevation model because that is the information we are going to use okay to do that one we have to use this tool last to them digital elevation model okay then I'm going to select the first one the file we downloaded it's classified with vegetation and ground yes okay going to keep Dominus on them lesson 10 them save and run okay it doesn't work when it happens we have to use we can use quantum GIS we have to use last tools literally okay I'm going to show you how to do it yes we have to go to the folder we have in local disk C last tools go to bin and here you have all the algorithms to use okay we want to use last to them is this one and here you have destructions how to use it okay then double click if you are using Windows 10 make sure you are doing this one you make all this tension for the windows ok because in other way you are going to have problems then click here letter C go we have to look for our file users Marcel my files are in the desktop lesson 10 lighter I'm going to select this one I'm at ok this one then I'm going to go here to filter and I'm going to select keep classification ok as you remember we have two classifications soils and vegetation in this case ok then the value has to be two here and you have to add ok then we have to go here to select output ok going to put them digital elevation model Plus to last last to last so maybe he's select our wrong one yeah has to be last to them I'm sorry I said remember to extend all the windows go to browse select the territory you have your information you make it is the letter C go here I have to select users because I have the information in my desktop desktop lesson 10 Liza select the file is this one go filter keep classification as I said before value is number two is because we would want to keep the classification number two here this is the resolution for the den I'm going to put zero point five keep the elevation actual values that's good for output I'm going to put them digital elevation model you have to make sure you minimize this one then everything is good I'm going to run you can select the format you want for the file from for me that one is OK cancel because what I'm going to show you is this scream also this is important because you are going to be all the processor okay run here is your specifications start as you can see here there is a warning because we are unlicensed the fire we have is over 1.5 millions points then is going to insert in black and diagonals on our file to show you this what it means exactly okay add a raster desktop lesson 10 lighter here is a word that ok open as we said at the beginning if you remember when we downloaded the information lighter we have here our projection ok 111 not 83 not 83 UTM zone 11 ok you see these diagonals that's why they said ok we are unlicensed and they are going to insert black and diagonals then we have to manipulate our digital elevation model we can add colors as usual okay classify applying the colors there you can manipulate this information as you want equal intervals 5 you can put the ramp you want apply ok you can make a 3d model with this one this is the resolution run as I said before I am working in a build tool machine then is Harvard Harvard to move these three model fast ok that area is very interesting because we have this kind of entire morphology I don't know why what is that exactly but that is the advantage of work with lidar technology right you can see things that you cannot see with the vegetation ok this platform here sorry is this platform here and this one is this one here but it's very curious this kind of morphology there you can see that morphology here this line is this line here in order to avoid these lines we can process other kind of algorithm I'm going to show you this algorithm is going to be this one blast to them except then goes see here go go to look for the fight we won users Marcel has to be my desktop here class intent lighter less intent lighter I want to work with this file same as before classification keep the classification value to add then here is going to be down to 0.5 the format is good and I'm going to do as I did before to see the screen wrong star when we are using this kind of algorithm in this case we don't have that restriction ok let's go to load the file is then to open same projection you see now we don't have remove this one we can change the color okay and we can't go and also the model [Music] as you can see the quality of the model it's really really good you can see a lot of features now what I'm going to do is just use last tools Eilis tools I mean such planet okay to download the area with one and I'm going to project the 3d model with the area we are working now this Grand Prix the area we are working now is this area here let's see what is the better resolution we have being Caribbean there's no bad but I believe the other one he was better on Google nothing for Google Google Earth nummies because we are nothing Google Earth nothing ok I'm going to use and the everyone for terrain let me take this one I don't know why I can see now and answering henchmen died Missouri okay this one no one has more light we are going to use this one the area [Music] going to make a polygon from here to here the zoom is going to be 20 I want giant if because he's going to keep the entire referencing inside the file I'm going to save this one in lesson 10 neither side save soon 20 we set [Music] over Liars we are going to use anyone for the projection I won wgs84 because we don't have the projection we are using is do tiempo que these disorders has geographic coordinates it doesn't have projected coordinates to start okay perfect let's see lesson 10 neither is this image you can see the resolution is pretty good now we are going to add to our area then we are going to select here what projection we want is this one already is good okay here is good okay then at the roster is going to be the side okay this one [Music] [Music] okay now we can do the 3d model with this picture on the top to do that one yeah still here maximum resolution image grows no sorry liar select this one site okay maximum resolution here but I don't know if we go is going to work the model because it's too much resolution for everything I'm going to try it is very slow i room the same model in my main computer I mean outside of the bill to our machine I'm going to show you okay is this one and now we can see it moves very fast okay this is the result for the 3d model really good quality okay there are funny too here you can change the color or a blue one for example [Music] okay way to close close now what I'm going to do is extract the contour lines for this digital elevation model that's very easy just go here to raster extraction contour you'll have to select your digital elevation model is this one as you can see here the name this one select your output is going to be pleasant I'm neither going to put here contour contour lines safe and you can decide the interval is going to be one meter is going to be too much lines I believe well let's go to layers one meter the attribute is going to be the elevation for the attribute table okay then okay the process is going to take not 83 okay the process already complete we have our contour there finally we are going to create a Hale shape so that one we can download plugin called terrain analysis we have to be connected on Internet yes terrain this is sorry terrain analysis is this one close we are going to work with the digital elevation model then raster terrain analysis hi say we are going to save the new file here inside safe that's okay that you can change the orientation okay okay this kind of fight allows us to recognize you see the morphology of the surface okay we can see a lot of different elements and that's the video for today we are going to do an extension of the lighter and we are going to see a few things we can do with the lighter information okay but that one is going to be at this extension video for today that's it okay see you

Channel: Geo RGB

Views: 14,505

Keywords: Alberta, contamination, hydrogeology, geology, LiDAR, LAStools, QGIS, 3D model, Hillshade, Contour, surface, Lasview, lasheight, lastclassify, las2dem, blast2dem, DEM, TIN, Digital Elevation, terrain analysis, SASplanet, map, mapping, GIS, Geomorphology, oil&gas

Id: T4z6gFeDDbc

Length: 57min 50sec (3470 seconds)

Published: Wed Jul 25 2018