User Manual - rhinoreverse
Contents
1. and Angular Tolerance Covers a hole enclosed by an open or closed loop of selected surface boundary Curves Calculates the distance from the approximated surface to the given mesh New approximation of the curve depending on the given geometry 222. rhinoreverse Version 3 for Rhinoceros 5 User Manual 30 August 2013 Note Please watch the tutorial video on www rhinoreverse icapp ch as well iCapp GmbH Technoparkstrasse 1 8005 Zurich Switzerland rhinoreverse icapp ch rhinoreverse rhinoreverse is a plug in application for use with the Rhinoceros CAD system www rhino3d com It was designed to enable the user to create NURBS surfaces efficiently based on given triangle meshes With rhinoreverse control point meshes can be converted to NURBS surfaces Boundary curves are sketched onto the mesh All calculations for the approximation and adaptation of the surface transitions are performed automatically resulting in a very simple and intuitive workflow Rhinoreverse offers the user the advantage of being able to represent large complex shapes very accurately with only a few smooth surfaces rhinoreverse can handle the following input formats stl pol wrl vrml af nas rhinoreverse is easy to use and is very cost effective compared to other reverse engineering programs rhinoreverse is a product of iCapp GmbH a Oge BAS Load mesh Import surfaces Healing Distance measurement Sketch surfaces Settings Patch Redesign curves New in Version 3 All significant results and improvements from our development up to now have been incorporated in Version 3 And there s more Distance measurements from the point cloud to the surface
3. Activate any polyline by clicking on it or on a point of the polyline with the left mouse button The active polyline is highlighted in orange Note If you wish to activate the polyline without activation any of its points please click on the line segment between the points Move single points of the active polyline by clicking and dragging them using the mouse When you release the mouse key the point is dropped and defined on the mesh Delete points Activate the point to be deleted by left clicking it the point is highlighted in red and press the Delete button on your keyboard Pressing Delete again deletes the entire polyline Delete polylines Activate the polyline but not the point by clicking on the line segment between the points and press the Delete button If no point was activated highlighted in red the active polyline highlighted in orange will be deleted Join split polylines Right click the common point of the two polylines to join them Click on any point to split the polyline again This is important particularly when the surface boundary is to have sharp corners 30 August 2013 13 rhinoreverse I cr Calculate surfaces NURBS surfaces can be calculated only when the polylines form a closed loop Then a starting surface is generated and displayed When transferring intermediate surface data to Rhino use the menu item Commit command RRCommit to approximate these surfaces o
4. Geometry based curve redesign iCapp GmbH Technoparkstrasse 1 8005 Zurich www rhinoreverse icapp ch rhinoreverse icapp ch 30 August 2013 2 rhinoreverse Contents 1 Download 4 2 Install the plug in 5 3 Launch Rhino 5 6 4 Load mesh data 8 5 Sketching surface boundaries 10 6 Calculate surfaces 14 7 Calculate curves curve networks 15 8 Additional tools 15 9 Tables 21 Polylines lines specified with a sequence of points are drawn to divide a given mesh into individual NURBS surfaces The partitions should be placed as close as possible to the curvature transitions of the surface A NURBS surface will be automatically calculated for each closed cell 30 August 2013 rhinoreverse 1 Download 1 Ensure that Rhino 5 is installed on your computer before installing rhinoreverse 2 Download the installation file of rhninoreverse from the web site www rhinoreverse icapp ch A request form window will appear rhinoreverse Download information for rhinoreverse 2 will be sent to EMail Address First Name Surname Company Technoparkstr 1 CH 8005 Z rich contact icapp ch 3 Please enter your email address first name last name and company and click Submit The Internet page address to download the software installation package from will be sent to you immediately Please download BRhinokeverse Installer RhinoReverse 2bl exe at http www icapp ch iCapp Daten http
5. s main menu Now make sure the command prompt window is shown In the main menu select Tools Options then select Rhino Options Appearance and check the option to show Command prompt 30 August 2013 6 rhinoreverse s Rhino Options E Rhino Render z Summary s Linetypes Wwe Browser Rhine Options EE View m Aliases keyboard 5 Flug ing E Modeling Aids E Contest Menu z Selection Menu AhinoS cript Render Options AhinoM ail Alerter E Document Properties Units and tolerances Model units Milimetes 0 Abzolute tolerance po units Relative tolerance fio N percent Angle tolerance ho ees Custom units Hame Unite per meter Distance display Decimal Fractional Feet amp Inches Display precizion 1 00 Cancel Help Check Absolute Tolerance Then check Rhino s Absolute Tolerance To do so select Tools Options and then Document Properties Units Adjust the tolerance setting to match the size of your current model If it is too small rhinoreverse will assign a high level of flexibility to the NURBS surfaces in order to reach the transitional tolerance between them This will lead to increased amount of data to process longer times required to calculate new surfaces and larger file sizes We recommend setting absolute tolerance value to 0 01 when working with models with dimensions around 1000 mm see figure above 30 August 20
6. 13 rhinoreverse EE erry Load mesh data Note The functions of rhinoreverse can be accessed via the toolbar the Capp Tools menu and the Rhino command window The toolbar includes only the most important commands If you wish to work with the command window enter RR to display the list of all available rhinoreverse commands The full list appears at the end of this document In the menu click LoadMesh or enter the command RRLoadMesh to open a mesh file Select any of the available Rhino mesh objects and press Enter or press the f key to read a mesh from a file The following file formats are available stl Stereo Lithography pol PolyWork Version 1 wrl and vrml The option Delete input is automatically set to YES This is to avoid duplication when displaying the mesh after converting it from Rhino to rhinoreverse Please note the following important points a The given point cloud must be meshed Point data without any connections between the points mesh data cannot be used b The picture shows a defective mesh The color of each triangle represents the direction of its normal Neighboring triangles must have identical normals and thus be the same color as well c Large amounts of data can slow down data display and processing In such cases gt 1 million triangles rhinoreverse will automatically use a simplified display d Using inches as Model unit The d
7. 4479cdd2d3 Licensekey Register Mail License Request Trial 15 days lett rhinoreverse license request If you wish to try the software click on the button Trial days left You may use rhinoreverse for the period indicated on the button If you want to buy a license please click on Mail License Request An e mail containing your node ID the number of your computer determined by rhinoreverse will be automatically generated Please add any specific questions and suggestions you may have and send the e mail directly to rhinoreverse icapp ch iCapp will then generate a 30 August 2013 6 rhinoreverse I et paid license key valid for use on your computer only and send it to you Please enter the issued license key in the LicenseKey field of the Licence Information window and click on Register Note You need to log in with administrative rights to install the software because the license key must be written to the Windows registry file If the registration fails a message will be displayed Log in as an administrator and repeat the registration procedure 3 Launch Rhino 5 Launch Rhino 5 as you would any other software e g via the Windows Start menu rhinoreverse will be launched automatically and the toolbar will appear fe RhinoReverse EAE LES rhinoreverse toolbar Once rhinoreverse function has been carried out the menu item iCapp Tools will be initialized and displayed in Rhino
8. Download RhinoReverse 2b1 exe For further information visit http rhinoreverse icapp ch Please do not hesitate to contact mailto rhinoreverse icapp ch if you have any questions or suggestions Enjoy 4 Click on the provided link and save the rhinoreverse zip file to the C drive hard disk of the computer you plan to install the software on Note The installation may fail if the installation files are run from any other drive letter or if you try to run the installation across the network 30 August 2013 4 rhinoreverse Install the plug in Launch the installation file The software will be installed automatically provided you ve followed the installation instructions on the screen The following files will be installed e Program files The program file rhinoreverse rhp is copied to the plug in directory of Rhino 5 e Sample files These will be copied to the directory Install path RhinoReverse Example_ Data e User manual The file UserManual_eng pdf will be copied to Install path RhinoReverse Tutorial The user manual is accessible via the Rhino Help Menu and can be opened using the path Help Plug ins Rhinoreverse in Rhino 5 When you launch Rhino 5 the rhinoreverse plug in will be automatically initialized and the toolbar will be displayed The License Information window will be displayed iCapp RhinoReverse V1 1 License Information q x Node ID 0112
9. S of Mesh Surface Display rhinoreverse Options 30 August 2013 15 rhinoreverse e Final The approximation of the surfaces is done continuously so that the user can evaluate the final form of the surfaces at any time This setting requires a lot of computing power and may delay the display e Draft In the standard setting the initial surfaces are automatically roughly approximated to the mesh However the final form of the surfaces is calculated only when the user selects the Commit function e None No surface calculations are done The surfaces are calculated only when the user selects the Commit function e Surface Generation Fast Skin Smooth Face Fast Skin is a fast and robust but less precise method for calculating surfaces It uses interpolation rather than approximation This method allows generation of more complex surfaces but it is less smooth than the Smooth Face method which uses an approximation step to carry out the final surface refinements Note An additional RRRelief surface generation option is available See more details below e RMS of Mesh Expected measuring precision or white noise of the mesh this depends on the measuring device used to define the points for this mesh The measurment precision is the tolerance range of the deviations of the measured points from the real surface In rhinoreverse the RMS setting limits the approximation iteration
10. ate level for documentation if necessary 5 Redesign curves The redesign of curves is always strictly geometry based The maximum allowed distance can be freely selected The best possible result is determined by the control point distribution The objective is always the largest possible reduction of control points 30 August 2013 20 rhinoreverse I E 9 Tables Commands relating to the mesh and the generation of polylines oo punanen conman oncom Load Mesh RRLoadMesh Imports a Rhino mesh object or opens a bal mesh file RREditGrid Switches on the display for the polylines belonging to the current mesh Edit Mode is activated Commit RRCommit The surfaces are approximated and the transitions adjusted Then the surfaces or curves are transferred to the Rhino database ga RROptions Sets tolerances and display options Hide Mesh RRHideMesh Hides or shows the mesh Hides or shows the mesh object ImportGridV1 RRimportGridV1 Enables the import of polylines generated and saved with rhinoreverse version 1 RRRelief Fast method of draping a specific area of a given point mesh with one NURBS surface 30 August 2013 21 rhinoreverse Additional tools which work on NURBS RRPatch Mesh Face RRMeshFaceDis Distance tance RRCurve 30 August 2013 All transitions of a selected set of surfaces are adjusted automatically to conform to Rhino s Absolute Tolerance
11. e ue eee If the cursor is close toan _ If the user then clicks the In this case select existing point the point will left mouse key a menu will Snapping to close the be highlighted showing all available loop and start the options will be displayed calculation of the first Surface gray Note If polylines are not visible When the polylines are being drawn an internal depth test mechanism see section 8 decides what is displayed and what is hidden If a curve or a part of the curve is behind the mesh that part will not be displayed A complete grid is shown here Every closed loop of curves defines one surface max 25 curves When a closed loop is ready the loop will be filled with one surface Polylines with only one point will be deleted automatically 30 August 2013 12 rhinoreverse Note Curves that cross each other on the mesh surface without having a common defined vertex could lead to problems when calculating a new surface Care must be taken to avoid crossing curves Note The polylines that are used to define a closed loop must be connected with common points The respective start and end points may not be adjacent to each other Note Sometimes the displayed starting surfaces are not positioned exactly over the mesh data They will be pulled into their final position on the mesh in the last approximation step see section Calculate surfaces Edit polylines a
12. efault setting for the RMS of Mesh tolerance is 0 1 This value is correct if the model units used are millimetres and for models with dimensions of 100 1000 mm If a model dimensions 30 August 2013 8 rhinoreverse e aaa are to be defined in inches 3 94 39 37 inches the RMS tolerance must be adjusted to 0 005 Rhino Reverse General Information x Incremental surface creation finished ES Mesh v f holes 187427 348144 0 Mesh v f holes 210522 701740 current point not assigned current point X 12 615 y 3 398 z 19 586 not assigned Length min R eee Length min F patches Fourves patches curves 39 C O Live Edit Live Edit The General Information window The General Information window appears after a mesh has been loaded shows the current status of the sketch The General Information window appears after a mesh has been loaded The first line of the window displays the number of vertices v the number of facets f and the number of holes holes of the current mesh The second line shows the coordinates of the current 3D mouse position on the mesh In the third line the length of the active polyline shown in orange or green if you are currently modifying it with the mouse is calculated The fourth line shows the number of patches and curves generated In the last line you will find a Terminate button to cancel the automatic calculatio
13. le only in STL format The function RRRelief was developed to convert 30 August 2013 18 iCapp rhinoreverse I eerren them into NURBS This function works in a similar fashion to Rhino s Drape function The crucial difference is that steep surface areas can also be accurately mapped the control points are evenly distributed throughout the surface The boundary curves polylines of the desired patch must be sketched on the STL data before the RRRelief command can be launched and the number of control points set for the edges to control the mapping accuracy Given relief structure Given STL surface Resulting NURBS 200 control points Resulting NURBS shaded view in the long edge 4 Mesh face Distance The approximated surface Is analyzed at a distance to the reference point cloud The result of the calculation is displayed in a false color rendering Green areas match the point cloud red areas represent the negative triple RMS value and blue areas represent the positive triple RMS value White and black areas are outside the calculated tolerances 30 August 2013 19 rhinoreverse Topological details can be analyzed in greater detail by changing the RMS settings and recalculating Several areas can be selected for distance measurement In this case a separate mesh is calculated in order to display each surface The false color rendering is a separate mesh It can be moved to a separ
14. n offset to the inside This option helps check whether all loops are closed as required e Surface display CtrlPts The control polygons control points and control mesh of the NURBS surfaces are displayed e Surface display none The surface display is completely switched off e Edges Switches the display of face edges on or off b Special NURBS commands 1 Heal All transitions of the selected set of surfaces are checked and the absolute and angular precision values are adjusted automatically to match those set within Rhino s command RRHeal 30 August 2013 17 rhinoreverse easier and 2 Patch Patch may be used to close a hole between surfaces There is an optional setting within the patch command to match tangency to adjacent surfaces at the boundary curves Curve network Support faces to define Result of RRPatch tangential boundary condition When designing surface models users frequently need to fill in gaps between already finished surfaces with a tangential surface The menu item Patch command RRPatch enables such gaps to be closed automatically After selecting the function select the corresponding boundary curves of the adjacent surfaces If these do not form a closed loop the opening is closed in linear fashion Result of RRPatch 4 times Zebra plot to display transition quality 3 Relief In geography and architecture large relief surfaces are frequently availab
15. n process Close this window to exit the rhinoreverse editing mode The command RREditGrid can also be used for this purpose Live Edit If you do not want to set new points to define the surface boundary curves you can switch off the preview and thus the setting of points using the Live Edit button Note The dialogue title shows the status of the current calculation 30 August 2013 9 rhinoreverse EE ry Sketching surface boundaries First if working with mesh data generated by measurement systems please adjust the rhinoreverse measuring tolerance parameters If the tolerance value is set too low rhinoreverse may create a surface with wrinkles If the tolerance value is set too high the surfaces will not follow the mesh closely enough Please launch RROptions and adjust the RMS tolerance RMS root mean square distance accordingly see also section 8 Sample Head The mesh data Install path RhinoReverse Sample_Files Head_start pol come from a laser scanner the measurement accuracy is approximately 0 25 mm In this case the RMS must be set to 0 25 default is 0 1 Sketch polylines a Make sure that the edit mode of rhinoreverse is active The General Information window see section 4 must be open The editing mode should be activated immediately after mesh data are read If it is not activated click on the menu item Edit Grid command RREditGrid to activate the edit mode b Click anywhe
16. n the mesh The transitions between the surfaces will be automatically adjusted to the specified tolerance and the surface then transferred to the Rhino database The command RRRelief is used to generate a relief surface see the section entitled Additional Tools Note Sometimes the display of the surfaces and the mesh is not optimal for the current task For this reason various display modes are available Select RROptions to change the display options See more about the options in the section Additional Tools Transitions between surfaces Rhino offers several options for analyzing transitions between surfaces e g in a typical zebra plot If the resulting quality is not satisfactory use rhinoreverse s Heal function command RRHeal on a selected set of surfaces to improve the transitions Zebra plot in Rhino 30 August 2013 14 icapp rhinoreverse Speed up your design 7 Calculate curves curve networks In addition to calculating surfaces the user also has the option to import the generated polylines as curve entities to the Rhino database To do this use the corresponding option of the Commit function command RRCommit Wireframe curves in Rhino defined by polylines in rhinoreverse 8 Additional tools a Options A dialogue box with specific options for rhinoreverse command RROptions is displayed RR Options Interactive Face Computation Final Draft Smooth Face RM
17. re on the mesh The first point of a polyline surface boundary curve will be generated and shown as a small red sphere 30 August 2013 10 rhinoreverse c Moving the mouse will generate a preview of the active polyline The preview shows the polyline which would be generated if you set the next point by left clicking iniret ee Mesh ev ef shoes 204783 204088 15 asrent pont xsszsit y s0x677 1041 939 l Length min R 57 6 N4 Poe Terrae Uve tat The green line shows a preview of the curve When the user clicks at the cursor position the second point is set The curve has two points now It automatically becomes active orange z Mesh 2v f sholes 104783 204088 15 arrent pont 967 602 805 401 1096 196 Length min R 29 0 29 6 nnn COTE F uvest Option 1 When the mouse is moved again a preview of the whole curve is shown green Option 2 If the angle of the mouse movement is more than 60 degrees a new curve green will be started at the last point of the first one How do I close a loop 30 August 2013 Clicking will set the second point of the new curve The new curve is now active orange the old one inactive gray Option 3 If the distance between the cursor and the last point is greater than the combined length of the last two curve segments left clicking creates a new curve 11 LETTS rhinorevers
18. s up to a value corresponding to this internal tolerance This setting is also used as a basis for distance calculations The RMS value should always match the measuring precision of the mesh An approximation calculation with excessively high precision can result in extremely long calculation times and wavy surfaces e Depth Test on Switches the depth test of the display on Hidden surfaces and polylines will not be displayed e Surf Mesh Distance 30 August 2013 16 rhinoreverse I et Note This is an experimental option Save your model before using this option This option is used to calculate the distance between surfaces and the mesh online Please note that the Final option must also be activated When a polyline is edited the associated surfaces are recalculated and the distances to the mesh are displayed in colour The colour shade depends on the current setting for the RMS value of the mesh as it is assumed that the surface is approximated to the mesh up to this distance The colour goes from green to yellow to red Green indicates the range between 1 x RMS yellow between 2x RMS and red 3 x RMS e Surface display Shade The initial surfaces are displayed with shading e Surface display Hatch The surfaces are represented only by their iso curves allowing a transparent view of the mesh and the polylines e Surface display Outline Only the outlines are shown with a
Download Pdf Manuals
Related Search