Imageware Tutorial 2

December 20, 2011
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first 11 version on the level of management tools, as follows:
1 . menu path EditLayer Manager, or Main toolbar to find , select the layer manager, brings up the following way a dialog box.
2. the location shown below right click and select New layer, below (sorry! Kingsoft translation of the box can be caught down), it creates a new layer, the default name is L2
order to better manage the data, we need a new layer from your prefer, easy to remember the name. In the new layer L2 right mouse on the layer name, select Rename , then type “feature Data”, In the figure above, I has changed over the name. And then in Active bar to feature Data activation of the current working layer.
3 . scan layer ( olorCld 2 features data transfer to the feature Data layer is the most simple way: the scan layer is open, the box on the right mouse button select “ ColorCld2 ” , directly onto the left box layer feature Data , the transfer is complete. (Section 11 version, with a good layer of management improvements, to make operation more intuitive, easier. In many cases, from small to see where software developers are more considerate of users habits, and engineering in this Jiaoren machine interface control it… But from that point on many of the shortcomings exposed to domestic software, not just software, many users when things did not consider the details, it is do not respect the user performance)
4 : hidden data, only the Show bar to the floor or the name of the layer entity can be canceled before the selection box, corresponding to achieve non-pickable, just need pick column the corresponding layer selection box can be canceled.
5 : there is a more fun way is pressed the space bar, you can view with the left mouse button directly from the data onto a layer, so that the transfer of work to be completed. · point cloud feature extraction to assess and clean on the point cloud processing (referred to here clean, is to remove the previously created to align the point cloud and some auxiliary geometric)
? Use point cloud reflectivity point cloud tools to observe the changes in small parts (the tool I now think it not the role of how much!!! if only to see the trend of point cloud surface)
· Use the evaluation tools to get to know your data prior to starting surface patch breakdown. using point cloud assessment (evaluation) tool to obtain the point cloud on the surface distribution of information (ie, the approximate area of ??the surface)
· Layer management with tools to organize your data (making them easy to manage, in a large project, the ordering of the data is important, reverse engineering is an engineering, so it should be from an engineering point of view to reverse.) Before you begin creating a wireframe, polygon need to be discussed deal with some very useful skills. Mentioned here refers to the surface of the polygon data. We can treat the entity solid [Note: solid, rather than speaking in front of that entity ( entity ), I am not in I said more rigorous, but the fact that many of the concepts must be clear beginning. ] The same offset and clipping them, or they could be shelling (Note: shell . luck, why do you always run into difficult words translated, ah, I translate this shelling, peeling, can also be translated packers? crack in the software field is called as a shell of this) < strong> perform Boolean operations, the operator needs to establish the feasibility of providing cross-section line; also create a number of projects dealing with the feasibility of providing the necessary features, such as skin (Note: packaging., do not know how to turn this thing, is the skin, or the package? )
[ I would also like that is not practical to do many things can not understand. Now I can confirm my above translation is not wrong, shell is the meaning of shelling, is to shift the origin of the cloud, as if to put the layer of the shell out the same! Withdraw its role! Hey. . ] Note: Make sure the file “Section3.imw” is turned on (this “Note” appears many times, and the reader may not care about, people who write documentation evil waste efforts, because this project is not small, so he repeated prompts to save the file, which is from an engineering point of view, who is not willing to put their hard morning work wasted due to negligence)
before the start of the process, to set a reasonable level, we have to create and activate one called “Offset” of the new layer, then layer “Scan” display, and set operational (pickalble), while the layer “feature Data “is set to invisible. If you do the above settings, layer Scan (that is, the point cloud) is still not visible, you can press Ctrl S, then the point cloud data in the view of adjusting the position in order to facilitate observation.
polygon mesh point cloud of shelling (To shell the polygon model):
(Note: In the hands, you should first color of the initial point cloud layer removed clear way to go to the top to find, just said, what prompted this is not the original)
1. from Construct tool bar to find Create Offset , choose Polygon Mesh , or so the path from the menu to find ConstructOffsetPolygon Mesh .
2. set the offset distance to-1.5mm. This point cloud data can be created inside a shell.
3. specify the offset type (offset type) for the shell mold (Shell Model), and then Apply . (There is also a shift type called offset model, I do not know it is used to do, I tried it, both the result of the offset type as shown below: (left to shell model type; right is offset model types, who know its purpose, to tell I, okay?)
4. menu path selection OrganizeFilter LayersShow Active Only ( old version < strong> in practice), simply just shift out of the shell in the view (only out of the shell off to do the cross-section line). Note that some of the edge of the shell to be tilting , This is because the offset polygon mesh before the operation of small inconsistencies lead to normal, once they are removed, the shell is sufficient to create a cross-sectional data we need. (11 version, described earlier with reference to the layer management tools to set the properties of each layer !!!!!!!)
5. next step is to remove those to be tilting the edge of the shell .
remove polygons, to be removed tilting (To remove polygons):
1. to find the menu path ModifyPolygon MeshRepair Polygon MeshRemove Long Polygons . (many of which need a long bar is actually a polygon, the offset error or something, some small elongated polygons, it is estimated we only see the edge of the shell with the original between grid points there are many such clouds to be tilting.)
2.. set the limit distance (distance threshold) is 1.8mm, so polygon defines the maximum allowable length, we This value was chosen because this 1.8mm shell thickness of 1.5mm, while others are associated with very small polygons, outlines this long enough (this is the voice of experience, and I said, not many people than EDS, will use Imageware. to create the best people brush, painting certainly not bad!)
3. Apply . the result will be trimmed dialog box to generate reports, in this case 69 polygons were removed as shown below. (I mistakenly set to limit the distance 1.5mm, the results of more than 1000 polygons were removed) here, I can gently take a break, anyway, I had the breath below is to do cross-section lines, structure lines. point cloud processing this should all end!!! in front of all the work done to create a cross-section line, then line and surface of the structure to do it, I have taken the first step. Then the following work there are many, but we are confident that, right? I do this today is an example of the fourth day, I felt I was hard . there is no network (the network has been in my room is not available), there is no other information can be used, I am very grateful to Kingsoft PowerWord, although it is not easy, but it gave me great help! (Hey, I use pirated, but I support the spirit of Jinshan, where the Buddha? not being in the temple, but in their hearts! Again, set the world not to give too much of a student with learning disabilities, should be free or discounted)
now I recommend the forum can get some more material out of a reverse engineering with imageware about the book, focuses on the application, more focused on the principles of so the book is, but when the book.
you, I was not to learn to learn imageware imageware, I just want to know what to do reverse engineering, imageware features in reverse engineering in what is now I basically understand some, but not enough, so I hope I have carefully read the people who write these things gave me help and encouragement.
< br /> last hope proficient in UG, but also proficient in imageware who can fully weigh the modeling capabilities of UG and imageware similarities and differences, tell me, because I not only use these two software the novice, but also in mechanical product design novice, although I am a mechanical design students, Cankuicankui, the modern design approach we have not opened any class, now the undergraduate reading and not reading the same fact, we still traditional descriptive geometry 。。。。。。。。。。。。。 statement: how much do I put this example on the translation of many, now do here, and basically said the original document consistent, perhaps what I said there are many fallacies, but also look correction!
create the required cross-section ( Creating necessary sections )
There are many ways to cut after cut polygon mesh of the point cloud, the clipping tool allows us to specify the sample space using these tools can be made on the cross-section each sampling point. (on the sampling gap set, you should consider the accuracy of reverse products, there are several front is about how to ensure accuracy, can learn and this is from experience, I never graduated senior, Oh, no experience)
to establish cross-section (To create cross sections):
1. found in the Construct Toolbar Create Cross Section , select the parallel cross-section method Parallel Cross Section ; or follow the menu path ConstructCross SectionCloud Parallel
2. specified in a polygon mesh of the point cloud to create cross-section (I was the 11th edition is specified in the method of polygon)
3. Setting section orientation for the X direction, the starting point for the X = 0; (here by the X-direction, this section of the law should be to the addition operation X direction set here still practice the old version, version 11 is a direct approach operation in the view coordinate system, I feel not very good with sometimes shift the coordinate system does not go.)
4. Setting number of section 1, the neighborhood size is 0.25
5. Apply .. the result will be a cross-section of the YZ plane.
6. [1] (11th edition I introduce the practice, we should be prepared, it may not be easy to use, it may be I use pirated reason, more likely to be a serious software BUG. as shown below: (red circle where you must not fight election, if elected It is, then the fixed coordinate system was live, and can only rotate, can not change the location of its origin!!! Why? I rather it be classified as software BUG problem!) At first I took for granted it to the chosen , and I think it is called automatically calculated as the interval (Auto Calculate) then on the election, but the next step to adjust cross-section coordinate system do not move when in this place quite a lot of time I Specifically the Auto Calculate functions are useful, please test, I think it is BUG.
[2] as shown on the left, the figure in white is what we intend to quadrilateral cross-section through the point cloud .
must first section in which the coordinate system aligned with the world coordinate system, such as following diagram Right shown, alignment method is to use the left mouse to select the axis, such as the choice Z axis and the Z location value is set to 0 , so Z axis direction on the same coordinate system and the world. ( Note: The following figure shows the world coordinate system is not right!!!! it was just a local coordinate system of each entity, the concept I am still a little confused, so this example 3 / 4 Department, coordinates the problem is very important. Please make do read on, I will tell later how to adjust the coordinate system.)

and then to adjust the cross-section parallel with the world coordinate system YZ surface, where adjustments need to use the pivot point to rotate the section where the coordinates Department of the following diagram shown in left: red circle is the rotation point, you can mouse click on it, will come a point of the input box, you need to enter the rotation angle and rotation angle of capture, or directly drag the coordinates system rotation
Finally the section coordinates of the point cloud moved to the origin of the coordinate system origin. as shown in the right figure, the origin of the coordinate system in cross-section at the left mouse, and then enter the coordinates on the screen a small window, enter 0 , 0 , < strong> 0
7. to hide the shell, leaving only the cross-section polygon mesh formed after the cut-off point cloud, Use F3 to adjust the view to the left view mode. ( press F3 ?? why do I have to press F5 just like the following figure shows?? Oh, this should be the original of the document error. Also, many steps to do this, a question has been negligent is not clearly remember every step of the data generated by the name of convention, now you can remember about the whole thing, such as point cloud is called the cross-section here OffsetCld SectCld )
7. redisplay case ( OffsetCld < / strong> ), pressed the F1 , return to the top view ( TOP ) .
8. in Construct tool bar to find Create Cross Section , select the Interactive Cross Section . or find the menu path ConstructCross SectionCloud Interactive
9. specified in polygon mesh point cloud to create cross-section, and then specify the sampling interval of 0.25
10. in the above hollow triangle on the side of the point cloud pick up a point with the left mouse button , then in the opposite direction also pick up a point. (here I also understand English sentences for nearly an hour, then suddenly remembered that the document was put in front of concave parts of the model is said to the press with the thumb marks only understand here is that the hollow triangle area!!! here there is no icon, I do my own paste the following diagram
11..

12. APPLY
13. Repeat steps 10, 11, created by the other two levels of the center of two triangular hollow cross-section area, then create a level to another by a bend of the bend section. (the original document without map, below is what I do not know I understand right, especially that from a corner to another corner of the section, to understand the original is always awkward). ( Note: do horizontal or vertical geometry of the object, you need pressed Ctrl key, and do two levels with two triangular hollow area when the center section of press about need F1 back to TOP view; as a corner to another corner of the section to be pressed when F3 to do in the left view, and this section should generally through parts of the center.)
14.. Hide shell model, and then you rotate the view observe the cross-section, should appear as shown below the cross-section.
Note: You should have five sections through the point cloud: a cloud through the center point (bottom light blue), two levels through the triangular hollow area (blue), one extending through from one corner to the Another corner (below in brown), and finally by a point cloud in the middle (light purple) When you e satisfied for the section, you should use the constraint sampling (Constrained Sampling) command to remove the cross-section of redundant point. This operation can be based on the command string error (chordal deviation) to reduce the part of the point, but also allows you to specify the maximum span between points to ensure you do not remove too many points. This action helps to sharp edges.
point cloud sampling (To sample the cloud):
1. in the menu path to find ModifyData ReductionConstrainedSampling ( Perhaps the old version so find )—- first 11 version path < / strong> ModifyData ReductionChordal Deviation
2. set the maximum deviation (Max. Deviation) of 0.2mm and the maximum span (Max. Span) 0.7 mm
3. Apply . Notice that you have reduced the amount of data by 91%. That should be easily imported into any CAD system. you can notice it report said your data is reduced by 91%, so that these cross-section point cloud can be easily introduced to any kind of CAD system 。。。。。。( my report is to reduce by 92%, will not shrink so much debilitating it 。。。。)
4. to “Section4.imw” for the file name to save… Then we ate dinner the bar… my noodles under … I am a person office, corridor, no lights, I went out to fetch water to be meditation imageware … .. imageware …. , the original < strong> imageware not only can do reverse engineering, you can ward off evil..)
Note: Make sure “Section4.imw” File Open
< br /> during the configuration line, you need to carry out a reasonable level to set. to establish and activate a file called “Wireframe” of the new layer, then the “Scan” visible and actionable.
we are going to create three types of frame, each has a different modeling purposes, we want to create the first type is to be used for isolated sweep (loft) curve on the surface of the second type was a used to define the outer side of the curve of the real box. The third type is a form of geometric constraints, is to construct a geometric entity can be binding on the geometric shape.. Let us start from the top of the curve of it, it will be used to described on the surface. we must remember that in the modeling process, a certain geometric elements necessary to make it easy to remove, and not have to wait until the modeling is complete. in addition to the layer to be used to manage data, create various types of layer can easily be hidden and displayed geometry. (my understanding is that he structured the process, block operations, dismembered. the first treatment on the surface, then treatment around the side, and finally deal with the bottom at each step of the processing, use layers to manage the data, once they need to be expressed in wireframe or surface expressed after cleaning out the auxiliary in time graphical)
circle the top of the point cloud (To circle select the top portion): Tip: left view is recommended to extract the point cloud. so as not to cut too many points.. 1. Select Circle Select Points from the Modify> Trim toolbar. 2. circle the area designated to retain the internal (Keep Inside) removed the outside, so basically on the surface of the point cloud was extracted out. (is not imageware no point cloud merge function, the function that has developed Zhejiang University)
3. Use the left mouse button to select the range on the surface of the point cloud ( I do not recommend the original document in the left view (F3 key ) in operation < strong>, I do not think that operate , I chose F2 Bottom view, I tried choose TOP view, the result is always out of range, I would rather end view ( bottom) operation more convenient) . [ Note: here is not very good operation, may be repeated several times in order to better separate the point cloud on the surface, I started doing, the total is the separation failure, software failure may also, I had to start a imageware 10 , in the first 10 version it is better to do in and finally I was in the 11 did a version, the results shown below, if you are done until the 50th, when to do it , then I want to shake hands! because you, like me stupid !!!!]
4. then Apply

4 把 “Scan” hidden layer [Hey... are not you a Scan layer hidden on your screen with nothing?? that you just do not pay close attention to the separation out of the point cloud to create a new layer, I built a layer called "top wirefram". [ remind , here do the work in the back of less than , Anyway, I have no use . hands on training when it is < / strong> !!!!!!]
This is the original document, he has done, much better than my
create early the beginning of line (To create initial curves):
1. from Construc t find toolbar Create Cross Section , choose t Interactive Cross Section (author of the document is always more disgusting then, things have been done here, and also tips on how to find that tool, foreigners may not always love to remember things right…)
2. do two sections, the regional level through the triangular hollow center of the two sections of the cross-sectional model of the line can show the highest point on the surface characteristics and the lowest (< strong> should be in the TOP view!!!, here by the highest and lowest let me guess the solution would be a good freshman year, no way, people bungy fat, natural phenomena, and finally seriously think of it, not have a site on the surface like a thumb pressed down What? that is, at bottom, highest at the top there is a!! hehe. )
3. Apply 。。。。。
fitted curve (To fit curves):
Next we section on the fitted curve, but we can not yet be sure that we can construct the curve of contact with the edge ( fillet, who turned the word, I climbed over the front, but always felt inappropriate) . your view changed to XZ plane (you hell F 1, F2, F3 …. what, as long as you can press to the XZ plane, the point cloud If not hidden, then quickly hide, using layer management tools) [I see the following diagram a bit silly, and, above that The two sections a sense you do???? see the following pattern in cross-section, it is definitely not the above step for the in think about it, specially when done in the forward section of the operation, then made a 5-section point cloud, so I do think the above section lines superfluous bar !!! 。。。。。。。。。。。] < br />
1. from Create toolbar to find the Curve , choose Arc w / 3 Points , ( in 11 version in Create toolbar to find the Arc / Cirle, select Arc w / 3 Points , or menu path CreateCurve PrimitiveArc w / 3 Points )
2. Select “point in point cloud “(” Point in Cloud “) (the toolbar will appear at this time point to capture a group of tools, look for)
3. along the cross-section, select the three points, then < strong> Apply .
4. repeat other sections of the curve in the XZ view, as shown on the left should look like. right is what I do.
parity symmetry (To check symmetry):
· Right-curve, then choose Toggle Control Plot Visibility , check the curve of the control screen.

control area shows these curves are non-symmetric, we can control the uneven distribution of points to make this determination. (As for why the requirement is symmetrical curve it? this should be very natural, because the model is symmetrical thing. ..)
create symmetrical curves (To create symmetric curves):
1. in Create toolbar to find the Lines , select Infinite Line , or menu path CreateConstruction LineInfinite Line . In the TOP view, create a data area outside the constraints of infinite vertical line
2. set the coordinates X = 10, Y = 12, Z = 0. then Apply .
3. Modify selectionOrientMirror we to a straight line to the other side of the mirror
4. in the mirror so that the dialog box to set

5.
6. then Apply .
7. menu path selection ModifyExtend.

8. choose to do just two arcs, and make sure “Extend All Sides” is selected.
9. Specify the type of continuity (continuity type) as a Natural, < strong> and then extend each arc, the value of using a 10mm extension through the over-constrained line.
10. Apply .

11 found in the Modify toolbar Modify Curves, select Snip Curve w / Curve , trim the arc, to constraint the limit. ( sure you are in the TOP view to carry out the operation of!!!)
12. Use the left mouse button in the view is specified using two curves pruning, and then select the two arcs to be pruned.
13. choose a line of infinite length as the first binding trim line, and then choose two.
14. Select to snip using the View Intersection and make sure that “Keep Inner” is checked. This will delete the pieces beyond the snipping curves. choose to use the crossing point method for pruning, and confirmed to retain the internal (“Keep Inner”) check box is selected, so that you can delete the line outside the trim curve segment.
15. Apply . rotate your view, see if it is left as shown in the following way.
16. ( In addition, in the manner described above is an old version of the practice in the 11th edition should be set as the dialog box as shown below right !!!!!!)
in the auxiliary based on the graphic to create a new arc (To create new arcs from theconstructiongeometry) (construction: PowerWord explained as structural, architectural, construction, I think this role is to assist the creation constructiongeometry arc, they still turn to assist it)
above is only establish the arc graph structure (the shape should be similar but not as we use the graphics), if you check the end of each arc, they are in the Z direction is somewhat different. Now we will do well to use the above to create a new circular arc in the Apply button pressed before, you should determine the three-point arc on the Z coordinate value is the same, so they are the relative symmetry of the center line. (Oh,, how to understand it so hard ah, why is the three-point Z-coordinate of the same? how could be the same, ah, Z coordinates of two endpoints of the same Dao Yehao understand, the third Z coordinate points are the same, that does not become a straight line??? first look at what the following are about, then consider this question it)
1. in the toolbar to find the path Create> Arc / Circle -> Arc w / 3 Points . (inverted.. enough to make people angry! is it not 11 version of the practice! why this feature is described on the front or the way the old version? I can not stand this Laoyanhunhua modify a document of a foreign devil)
2. Use curve end (Curve Endpoint) tool to pick up the first arc to capture the left point. (capture tool family room and look in the toolbar)
3.. The second point, the midpoint of the catch curve method using the pick up.
4. The third point of use using the curve end (Curve Endpoint) tool to capture pick. (11 < / strong> version called Curve End , Oh, if you like me stupid, then I suggest you to capture the series of names that look, that would very often they are used, then the following helpful if these capture tools, I will not go into the )
5. before the Apply to confirm three point Z value is the same, if different, Z coordinates of each point in re-type a value, so that they are the same. (Boy, this is not hijacking the Man? I tried, the author is a lie people!! should be the same two endpoints of the Z coordinate stands to reason that some have to be symmetrical about the Z axis, how can the same three-point Z-coordinate??? I posted my map, I do not believe that I wrong! should be Y value equal thing.. The figure is what I do:)
6. on the other an arc Repeat!
7. the graphics do not delete the secondary structure, avoid the following work be puzzled !!!!!!!!!< strong> (my suggestion : Do not mess delete novice, it is best to create a layer of refuse collection, do not need to feel the geometric elements over this layer of refuse collection, and then after the event, you can restore!)