The object in CAD is caught track

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In project blueprint scale, often need to be in opposite at oneself have a boy or girl friend a certain locally collect is nodded, for example likelihood from oneself the collect on the certain space that has a boy or girl friend or direction is nodded, if use groovy means, often want to solve the collect of these dots with auxiliary line ability. However, in in look at CAD2006 in, the object is caught track make however the plot kind of the user produces very big change, it offers be based on oneself the traces a line visible collect that knows a place, make the person that use OK conveniently collect is nodded to these, improve the efficiency of plot greatly. The clew before because this user is OK and dedicated,be duped at screen sees current plot condition in real time. The purpose that track is a bit what should be based on personal existence, catch with the object come collect is nodded another times. The dot of existence can be called these oneself to track a drop temporarily, most but be patient of tracks a drop 7 times temporarily. The object is caught track can pull to trace dotted line temporarily, can with other track line or oneself to the object produces point of intersection, we are OK conveniently collect is nodded to these. Those who want an attention is, should use an object to catch track, want to an object catchs be activation at least. Above all we should install an object to catch, in column of condition of screen lower part " the object is caught " right key is clicked on key, playing the option in the menu that go out " setting " (perhaps go in the command directly li of input OSNAP, farewell car) , play piece " draft is installed " dialog box, the setting is as follows: Graph 1 of course, below different situation, the object catchs a setting also often not identical. When particular operation, can use track a drop temporarily, the icon that clicks an object to catch tool column to go up " (track a drop temporarily) " ; Below the clew that inputs a dot, importable also Tt, carriage return hind appoints to track a drop temporarily, its admiral appears a small icon, when mobile cursor, will photograph show to be being nodded this temporarily trace pair of neat path automatically, the user is on method take a place with the opposite coordinate that nods at be being tracked temporarily relatively, this is the measure that takes eye punctuation when the impact that knows some dot and eye punctuation. Of course, can pass commonly by function key F11, the object that start tracks mode to achieve quicker goal. An example is below, use a method actually what the specification tracks dot and object to track pattern temporarily. [example 1] if pursue 2 in have a rectangle and a bit P1, ask from P1 new scale reachs rectangular center point-blank. Key in Line command to perhaps click icon, after the dot takes start P1, obtain an object to catch mode to have two kinds of cases: 1. Key in Tt carriage return, the requirement is appointed track a drop temporarily. Graph 2 key in Tt dot to take below midpoint 1) the midpoint that right now we catch a dot to take lower level with midpoint, click Zun Jian, decide the midpoint of the following edge is nodded to be tracked temporarily, the mouse moves up a little, appear perpendicular trace pair of neat lines, if the graph is shown 2 times, can obtain opposite coordinate to obtain eye punctuation for base point with tracking a drop temporarily at this moment, but the point that we should gain and the midpoint at right are concerned, because this reoccupy tracks a drop temporarily. Graph 3 key in Tt, the dot takes left midpoint, right move cursor 2) key in Tt carriage return again, appoint track a dot to be rectangular right center temporarily, occurrence level is right neat line, zun Yiguang mark reachs along the line the first upper part that traces a dot temporarily. If pursue,3 are shown. 3) appearing the 2nd perpendicular to neat line when, see two intersect to neat line at the same time, take a place right now, it is rectangular center at this o'clock namely. Above is to use the applied case that tracks a drop temporarily. 2.

Use an object to track pattern, press <F11> of clavier function key, or in column of condition of screen lower part " the object is tracked " pushbutton dot stroke leaves, "The object is tracked " pushbutton sinks. Graph 4 obtain the first track a drop 1) right now we catch the midpoint place in below to keep several seconds with midpoint, if pursue 4, need not nod take, track a drop in order to obtain the first, show for small triangle indicates (midpoint) , derivative and perpendicular to neat line. 2) move cursor to place of rectangular right midpoint to stay, need not nod take, obtain the 2nd to track a drop with this, show for small triangle indicates (midpoint) , derivative level is right neat line, zun Yiguang mark reachs along the line the first upper part that traces a dot. Graph 5 at two pairs of neat lines nodical place takes a place 3) appear to be opposite twice at the same time it is thus clear that right now neat line, take a place right now, be like graph 5, it is rectangular center at this o'clock namely. Graph 3 in clew is to track a drop, and graph 5 in clew is midpoint, can see the clew that tracks dot and object to track pattern temporarily has distinction. From inside the operation above, use the methodological good understanding that tracks a drop temporarily some, but use an object to track pattern more convenient and quick, the attention is used track bit of point to attack temporarily, and use an object to track need not click, just move cursor rock a little to need position can. [example 2] if want to design a simple part: In a rectangular spare parts in the middle of the heart digs a radius to be the round hole of 20. The analysis solves: The key is scale circle when how apace collect the centre of a circle reachs rectangular geometrical center, with above similar, the midpoint boy or girl friend that introduces both sides to go up is tracked can, if pursue 6, the graph is shown 7 times. Graph 6 objects track the midpoint that looks for rectangle to pursue 7 midpoint make a circle for the centre of a circle [example 3] show 8 times like the graph, make all the time line, start is in the below of two rectangle is outspread the line is nodical. The analysis solves: The object catchs the hook in the setting to pick outspread way, key in Line command to perhaps click icon, the mouse moves of left rectangle right next horn, move toward right upper part slowly again, appear an outspread line, move the mouse again of right rectangle left next horn, manage together, also appear toward shift of wrong upper part slowly an outspread line, when reaching some place, two outspread lines intersect, this also is the site that we should seek, click mouse Zun Jian to decide. Graph 8 objects catch outspread means to look for point of intersection [example 4] show 9 times like the graph, foregone have a linear L1, should draw to pass foregone point as parallel as L1 linear L2.

The analysis solves: The object catchs the hook in the setting to pick parallel way, key in Line command to perhaps click icon, click known drop to serve as the start of linear L2, mouse shift arrives on linear L1 rock, appear on linear L1 a small parallel icon, the mouse is right move, appear from known drop an object takes dotted line (parallel is right neat line) , if the graph is shown 9 times, along this pair neat line can make the linear L2 of requirement parallel. Graph 9 objects catch parallel means to draw a line to use an object to catch track along undertake tracking to neat method, be based on an object to take a place to neat method. The name a person for a particular job that already got shows a little plus sign (+ ) , can get 7 to track a drop at most. After getting a point, when mobile on plot method cursor, the standard that selects at getting relatively, perpendicular or extremely the axis will be shown to neat method come. For example, can be based on object end points, midpoint or the node of the object, choose along a certain method a bit. Graph the object of 10 circular arc catchs outspread means object tracking application is extensive, it is a few people are used without benefit only, the object is caught catch with the object track union to use, can experience its advantage more. Graph 10 it is to use the outspread line that the object takes to undertake the outspread means of circular arc is caught, the graph is circular arc 11 outspread means and cross axis of pole of the centre of a circle to intersect. What CAD2006 looks in is outspread catch, parallel is caught and catch from the function can with track a system automatically to supplement each other, offerred for us catch formidably, track a system. Graph 11 circular arc are outspread means and cross axis of pole of the centre of a circle to intersect to want to take care only, from appoint track a dot to begin temporarily, practice a few times, can master an object to catch track a method, will make the efficiency of your plot rises greatly, and more accurate. The experience in using uses an object to catch, extremely the axis is caught track and the object is caught when tracking, complier summed up skill of a few experience, can offer reader reference: 1, the object is caught tracking is the object is caught with extremely what the axis tracks is integrated, enable an object to catch before tracking, ying Xianqi is used extremely the axis is tracked and voluntary target is caught, need the increment part that setting pole axis traces according to plot, install what good boy or girl friend catchs to take pattern. 2, in " draft is installed " in the dialog box " the object is caught " in option card, "Enable an object to catch track " answer whether does the user that choose casing enable an object to catch certainly track. In plot process, use F11 to bolt or click condition column to go up " the object is tracked " pushbutton, but at any time switch object is caught those who track enable. 3, with track a dot to use an object to catch together temporarily track. Below the clew that inputs a dot, input " Tt " , appoint to track a drop temporarily next. This bits of admiral appears a little plus sign (+ ) . "Tt " it is a transparent command, the user is in order executive process all importable " Tt " appoint aleatoric dot to be nodded to be tracked temporarily. When mobile cursor, will photograph show to be being nodded this temporarily trace pair of neat path automatically. If want to delete this a little bit, should move cursor return plus (+ ) above. 4, after getting an object to take a place, use direct distance edge to be opposite neat method (only then take a place at the boy or girl friend that already got) the feature is assigned in accurate distance place. Concrete step, want to assign a feature below clew, choose an object to catch first, mobile cursor shows pair of neat way, input a distance below command clew next can. 5, catch with the object track use together " hang down sufficient " , " end points " and " midpoint " the object is caught, arrive with scale perpendicular the dot at object end points or midpoint. 6, track a system basic shortcut key and the mutually exclusive sex with orthogonality are to use whole the foundation that tracks a system, track a system in the object accordingly in, do not open orthogonal switch. 7, " draft is installed " → " extremely the axis is tracked " → " the object is caught track a setting " the pattern that options group uses at deciding the object is caught to track, "Only orthogonality is tracked " express to should enable an object to catch when tracking, demonstrate orthogonal form only track vector; "With extremely all axial horn setting is tracked " if enable an object to catch,express to track, should appoint after tracking a drop, hope CAD allows cursor edge in any extremely axial horn undertakes vector is tracked. 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