This section is displayed automatically when the user selects one room in the project administration or by using the tab in the header. If the loaded room contains no elements the leveling process will be started. If the room contains the elements the modelling functions will be started.
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Scan leveling
After loading scans without 3D elements the buttons for leveling appear automatically. The leveling compensates mismatches of the scanner alignment on-site. The leveling aligns the panorama horizontally. Several options are available:
The button (level the floor automatically) evaluates measurement points at the floor for automatic leveling. This option should be taken in to account when more than three measurement points are available and the height difference is not seriously.
The button (level the ceiling automatically) evaluates the measurement points at the ceiling and creates a ceiling plane.
The automatic function simplifies the leveling but can also cause issues. If an issue appears the following pop-up appears:
The default value for the leveling is set to 10 cm. All measurement point which are in the area of 10 cm are taken into account. The search area can be extended which requires a restart of the leveling process. In accuracy will appear if the search are is too large.
After the leveling a pop up window with the leveling results will appear.
In this cases the search area was set to 70 cm a unusual large search area. Nevertheless three measurement points were detected and a correction angle of -10.15° was set. This means that the scanner has a perpendicular deviation of 19.62°. This setup of the scanner is too crooked so that the automatic leveling can not be used.
Every leveling process can be restarted by clicking the button [New leveling]
The following pop-up appears:
As described in the pop-up all created planes will be deleted and the current modelling process is no longer available.
This pop-up shows an accurate automatic leveling . The number of considered measured points (31) is high. The correction angle of 0.06° indicates that the Scanner was positioned ideal.
Measurement points can be selected manually by double clicking. Measurement points are hightlighted in the panorama as green dots. The color of the selected dot is changed from green to red. Each selected do will be mentioned in the list “selected measurement spots”. For the initiation of the leveling three measurement spots are required. Additional spots are possible.
With the button [Level the wall manually]the leveling can be processed at a wall. It is mandatory that the wall is aligned perpendicular to the horizon and three laser measurement spots have to be selected which are located on the wall.
This option is recommend if no horizontal planes with at least three measurement spots are available.
For the leveling it is recommended to select three measurment spots which are as distanced as possible to each other and are not located on the same line. Afterwards the leveling can be initiated by clicking the button [Level the plane manually].The following pop-up appears:
prefered a ceiling or floor plance can be creatd based on the selected measuring points or on the selected and additional measuring points. The option additional points selected points indicates that all measuring spots which are located closed by the plane are taken into account.
By clicking on the button [continue without leveling] the leveling process will be skipped. This is recommend if no 3D modelling is needed.
Notice: The roomscanner HottScan HS-1 has to be aligned appr. perpendicular. This reduces the on-site time as a proper alignment is no longer required
Modelling
After the leveling the HottScan Modeller displays the the buttons for the 3D modelling:
The buttons from left to right have the following meaning:
Horizontal ground plane: A horizontal ground plane is created. One measuring spot has to be selected.
Horizontal ceiling plane: A horizontal ceiling plane is created. One measuring spot has to be selected.
Vertical wall plane: A vertical wall plane is created. Two measuring spots have to be selected.
Individual planes: An individual plane is created. Three measuring spots have to be selected.
Construction of planes and openings
The buttons for the surfaces on the right side are described. The openings behave in the same way when it comes to commands and sequences. However, an existing surface must be selected in the 3D navigator.
Rectangle two points
A surface in the form of a rectangle is constructed on the active plane with two click points. The first point can be any corner point of the rectangle and the second point is the point diagonally opposite the first point on the rectangle. If the active plane is horizontal the rectangle is modelled along the main axis of the coordinate system. The main axes are displayed using the grid of the horizontal planes.
Rectangle three points
A surface in the shape of a rectangle is constructed on the active plane with three click points. The first and second click points form the basis of the rectangle while the third point determines its height. Unlike the rectangle with two points, this rectangle can have any position
Triangle
A surface in the shape of a triangle is constructed on the active plane with three click points.
Polygon
A surface in the shape of a polygon is constructed on the active plane with several click points. The polygon must have at least three and a maximum of 250 click points.The clickpoints should not generate overlapping planes.
The backspace key enables the removal of click points. The + key adds new click points.
Circle
A surface in the shape of a circle is constructed on the active plane with two click points. The distance between the click points corresponds to the diameter of the circle.
Additional functions
 Create a prism | This function allows the creation of a room using a selected plane and extrude this plane prismatically. The plane will be created along the plane section which went through corner points of the plane. If no plane section exists the plane will be created orthogonally. A special case is the roof plane. The plane will be drawn orthogonally to the leveling plane. By entering a value, a dialog appears in which the height of the prism can be entered. For the activation of the function, a ceiling or floor area must be selected. No further planes should have been created yet. |
Automatic filling of layers | Empty planes are filled automatically. Planes which have arleady a filling will not be filled again. The button can only be used when the following conditions are fulfilled.
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| Helper lines are constructed on all planes by clicking on two points. Helper lines construct hidden points as the intersections of the helper lines form snap points. |
| The parallel helper line is an important feature for the construction of parallel helperlines e.g for the construction of walls |
| A plane is selected and the distance between two click points is displayed with a line and the length of the line is also indicated. If two measuring points are selected, a click of the button automatically generates a line and the length of the line between the measuring points. |
| The first click point on a selected plane selects a point on the plane through which a vertical measurement line is drawn to the selected plane. The second click point creates a line and the length of the line. The orthogonal projection is ideal for determining soffit depths and other important measurements. If a measure point is selected, the dimensioning is drawn orthogonally to (leveling plane) from the measuring point. With the [Space bar] the dimesion is drawn orthogonally to the active plane. |
| At a selected plane a angle measurement is initiated with the selction of three clicks. The first two clicks define the first leg and the third click the second leg. |
| An orthogonal angular dimensioning can be created with 3 click points. For example the determination of the anglice of two intersecting surfaces can be evaluated. |
measurement chain | This function enables to measure multiple distance measurements one after another. With [Space] you move in an orthogonal direction and a coordinate cross appears. It is possible to change the reference plane by selecting it with the middle mouse button while clicking. With the keyboard buttons +/- the points can be added/deleted. |
automatic dimensioning of planes and openings | Openings and Planes are automatically dimensioned. |
automatic angle dimensioning | After the selection of the opening or plane the angles will be automatically indicated |
Movement | This button is activated when an opening is selected. With two clicks the opening can be moved to its new position. By clicking the space bar the reference point of the opening can be changed. |
Notice: For the functions parallel helper line, distance measurement, orthogonal measurement and angle measurement exact values can be given.
If a digit is entered during a construction a pop-up appears. This pop-up enables measurements with given digits and the contstruction of parallel helper lines with defined distances.
For distance measurements and angle measurements a text input field is available on the right , in which additional information can be entered, which is then displayed on the measurement.
Frequently used texts can be stored in the tab [Naming options] in the program settings.
Transparency | This controller sets the transparency of all modelled surfaces. If the controller is at 0, all surfaces are invisible and when it’s at 90 all surfaces are opaque, concealing the panorama. |
Testing open edges | Click on this button to check whether the modelled room is closed on all sides. If there is an open edge, in other words no surface connected, the edge is shown in red. The red marking remains in place until the button is clicked again.Open edges can occur when incorrect or no snap points are used. Open edges then lead to incorrect dimension calculations and interfere with further processing of the 3D model in CAD. |
| Screenshots of the panorama can be saved in an individual picture. With every click on the button another picture will be created. Taken measurements can be documentized with a single screenshot |
| Displays the extrusion direction of walls: |
| Inverts the direction of the extrusion of the selected plane. The extrusion direction for the IFC -Export can be adjusted. The extrusion direction for walls in the IFC exoirt us determined heuristically (it is checked wether a wall is adjacent to the floor polygon and the direction is determined with regard to this polygon). This does not work for dormers or free-standing walls. |
| Move into a selected room. |
| Notes will be located to certain planes. |
| Notes can be added to a scan project |
| Selected note can be open and edited. |
CAD Export | The CAD Export exports the modelled room to DWG/DXF, Collada and IFC. The following pop-up appears:
In the first tab a DXF- or DWG file specified Autodesk data formats. Formats of the version V14 or 2013 can be selected. The DWG/DXF file will be exported with structures (elements in layers) with the modelled room planes and openings. (sample in in DWG TrueView): In the second tab a collada file format is exported. Collada is an interchange format for 3D applications based on XML and texture files. The level of detail of the file format can be selected on request An optional preview displays the segmentation of planes in triangles:
Sample of Collada export in open3mod Viewer:
In the third tab an file in IFC format is exported. Sample of an IFC-Exports:
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The direction of the extrusion is labelled with red arrows
| Modelling functions can be undone or reproduced. The number of actions is limited to 20 steps. |
| Displays the catch function on end points, intersection points, mid points and on edges/lines. The yellow framing displays whicht catch function is enabled. The catch function can be enabled and disabled while modelling process. |
| The fontsize of dimensioning can be reduced or enlarged. The setting is set for all scans as long as the programm is in use. |
| When the button automatic is enabled all wall planes which are displayed in the 3D-Navigator will be automatically zoomed in the ideal size. |
| Planes can be selected by click onto the plane or by clicking in the 3D-Navigator. The function is also available by aiming on the desired plane and clicking on the mouse wheel.. |
| Move/Rotate of sub room. The selected sub room can be moved with two clicks (first= start point; second= endpoint) and rotated with three clicks (first= rotation point, second= rotation angle, third= final angle) |
| All construction lines and planes intersections can set visible or invisible |
| All measurement lines and angle dimensioning can be set visible or invisible |
| An axis of abscissas appears when a polygonal modelling process is in progress. This feature enhances the alignment of the polygon to the room to 90° degrees. |
Rooms with several scans
Several scans can be assigned to one room if all scans will be stored in one folder (see illustration below).
If the button [Room 3D Model room] is clicked the selected scans and all other rooms will be loaded.
3D-Navigator
In the 3D-Navigator levels of the hierachy can be dropped down by clicking „+“and fold up by clicking „-„.For each scan or sub room exist for main structures:
Positons, single measurements, notes and 3D elements
Sub rooms
The tree for active sub rooms can be extended. All other sub rooms are displayed as additional part.
Positions
The positions mentioned in „Pos 0 180/60 – 2,53“ indicated the capturing position of the scanner on-site. The position indication start with 0 and continues with ascending order. After the number is the horizontal and vertical angle indicated devided by a slash. After the dash appears the distance indication [m].
If the laser could not detect a positon on a certain surface- e.g. strong reflecting materials or transparent surfaces- no digits will be displayed. The positions is not available for the modelling process.
Based on the caputred distance and camera angel (FoV) are 3D measuring points calculated which are the basis for the 3D modelling process. The measuring points are colored green.. Measuring points (green balls) vary in their diameter according to their distance. The closer the measuring point is the larger the diameter is displayed.
In the 3D-Navigator a position is selected with a mouse click. The field of view is automatically focused and the measuring point is shown in the center of the field. In addition the measuring point is highlighted in blue color.
Measuring points in the panorama can be selected with a double click close by the desired measuring point. Selected measuring points are highlighted in red color. The selection can be deactivated with the ESC button on the keyboard. In addition a selected measuring spot can be disabled with another double click.
The visibiblity of single measuring spots can be enabled or disabled by clicking on the check box.
The image of the positioned will be opened with a double click in the installed default image viewer
Single/individual positions
Single positions have the same intention and behaviour as the default measuring points. Single measuring positions are displayed in a bright green color. Single measuring spots can be generated with the remote control function (see tab remote control). The generated spots will be added to the existing scan and increased the amount of available measuring points. Single measuring points can be generated on planes where no measuring point is available.
Notes
Notes can be added to the panorama at the remote control tab or at the 3D Navigator. The notes are displayed as colored cube. The notes can contain details about planes, elements, text or misc. The notes can also be assigned to modelled elements when the modelling process is finished
3D Elements
In the hierachic structure „3D-Elements“ are all modelled planes and openings displayed.
The modelling process requires first the definition where planes are located afterwards the modelling of the planes and the existing openings.
Planes and openings can be selected in the 3D-Navigator. The field of view can be automatized when the functionality is enabled
Right-click on an element and a context menu dependent on the element appears in the 3D project navigator. In this context menu you can copy an element, change element allocation or delete elements. Unterhalb des 3D-Navigators befinden sich Funktionen zur Anzeige von Werten, dem Ändern von Zuordnungen und Drucken der Screenshots.
Functions to display values and change allocations can be found below the 3D navigator.
The dimensions of the selected 3D element are displayed on the left. At the top of the list is the maximum width, then the maximum height of the 3D element. Next is the perimeter, fol-lowed by the gross and net surface area. The gross surface area is the surface area of the 3D element not including cut-out areas such as openings. If the selected 3D element does not have any openings, the net area surface is not displayed. If there are openings, the net surface area is indicated. The value is always smaller than the gross surface area.
The type and geometric shape of the selected 3D elements are displayed on the right. The type can be changed; this function corresponds to the change in the context menu. You can also enter comments about a 3D element here.
According to the type of geometry different editing functions are available. Rectangular planes can be moved at the edges and corner points. Corner points of polygonal planes can be added, deleted and moved. Circle´s radius can be adjusted. The editing functions are also available for columns and volumes.
The [Print] Button starts a print dialog: →
The printer, the sheet format, the sheet orientation and the print resolution can be selected in the dialog. The edges can be adjusted as well as the printing in black / white and in color. All screenshots that have been made are displayed in the list and the screenshots to be printed can be selected with an option tick. The screenshots are automatically deleted when the program is closed.
The [Save] button manually saves the current progress of the work. A security prompt appears to save the 3D model when a new scan is loaded or the program is closed.
Press the [New leveling] button to restart the 3D modelling of the scan including levelling. All existing 3D elements are deleted when a restart occurs so a security prompt appears:
This button is only useful if you notice that the levelling performed previously did not lead to any meaningful results
View mode
There is a button located at the top right of the panorama that allows you to select different display modes. The selected mode is highlighted with a yellow framing:
| Standard |
| This is the standard mode for modelling in the panorama. |
| Orthogonal |
| This mode creates an orthogonal projection of the room. |
| 4 views |
| This mode creates a standard view and three orthogonal projections in four views.. |
| Top view |
| This mode creates a top view. |
In standard mode, the user sees the panorama and the room from the perspective of the scan-ner. The other modes offer views of the modelled room with freely adjustable locations from “outside”. These modes help the user when modelling in 3D and with the detection of modelling problems: ->
Room information
If a scan is loaded all room information can be checked at the tab edit> room info. All available information appears in the pop up:
Columns
Modelling function
| Columns and pillars can be created with the icon . When the icon is pressed the following dialog window appears |
In the first step the layout has to be chosen. Available are the layouts rectangle, polygon, triangle, and circle.
After the layout selection the layout can be created on the floor and extruded to a column or pillar element.
The Extrusion of the layout is controlled by the mouse. The height adjustment of the column or pillar in relation to the storey height can be adjusted with the intersection points of the planes.
The height of the column or pillar element can also be adapted by entering numbers on the keyboard. After pressing the a number on the keyboard a dialog window appears..
| width x lenght of rectangular layout |
| radius of the circular layout |
| height of column or pillar |
| scope of layout |
| acreage of layout |
| acreage of lateral surface |
| volume of element |
Edit function
| columns/pillars can be moved by executing two mouse clicks. rotation is executed with three mouse clicks |
height adjustment / copy&paste/ delete | By clicking the right mouse button after selecting the appropriate element the dialog window appears . |
In case the layout is rectangular or circular the dimensions can be edited subsequently. By clicking the right mouse button (when column is selected) a dialog window appears which enables the adjustment of length and with or alternatively radius. |
