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Diffstat (limited to 'app/lib/demos/dmhelix.xtr')
| -rw-r--r-- | app/lib/demos/dmhelix.xtr | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/app/lib/demos/dmhelix.xtr b/app/lib/demos/dmhelix.xtr new file mode 100644 index 0000000..1a54c48 --- /dev/null +++ b/app/lib/demos/dmhelix.xtr @@ -0,0 +1,193 @@ +VERSION 7 +DEMOINIT +ORIG 10.000 0.000 0.000 +PARAMETER display labelscale 10 +PARAMETER display description-fontsize 144 +STRAIGHT 1 0 0 0 0 N -1 + E 23.086096 1.459535 254.675892 + E 72.500000 15.000000 74.675892 + END +STRAIGHT 2 0 0 0 0 N -1 + E 1.770859 28.642902 189.520022 + E 5.625000 51.625000 9.520022 + END +REDRAW +RESET +MESSAGE +Now we will create a helix in the corner of the layout connected to 2 tracks. +END +STEP +COMMAND Helix +PARAMETER helix radius 18.000 +PARAMETER helix turns 1 +PARAMETER helix elev 0.0 +PARAMETER helix angSep 0.0 +PARAMETER helix grade 0.0 +PARAMETER helix vertSep 1.0 +PARAMETER helix vertSep 0.0 +MESSAGE +_________________________________________ + +We will be creating a helix with a Elevation Difference of 12", Grade of 1.5% and limit the Vertical Separation to at least 2". +END +STEP +MESSAGE +_________________________________________ + +First set the Elevation Difference to 12" +END +STEP +PARAMETER helix elev 12.0 +BIGPAUSE +BIGPAUSE +MESSAGE +_________________________________________ + +Next set the Vertical Separation to 2" +Notice how this causes the number of Turns to be set to 6 +END +STEP +PARAMETER helix vertSep 2.0 +STEP +MESSAGE +_________________________________________ + +Next set the Grade to 1.5% +Notice how this causes the Radius to change. +END +STEP +PARAMETER helix grade 1.5 +MESSAGE +_________________________________________ + +Setting these values changes the Radius to 21.2" and the number of Turns to 6. +END +STEP +MESSAGE +_________________________________________ + +Now we specify the Angular Separation between the enterance and exit to the helix. + +Note: this will decrease the Radius slightly. +END +STEP +PARAMETER helix angSep 90.0 +BIGPAUSE +MESSAGE +_________________________________________ + +Next we can fine tune the helix by decreasing the Radius to 15". +Note the change to the Grade. +END +STEP +PARAMETER helix radius 15.0 +BIGPAUSE +MESSAGE +_________________________________________ + +Lastly change the Vertical Separation to 2.5". The number of Turns will change to 4 and the grade increase to almost 3%. + +Note: the Vertical Separation will be increased. This value is the Elevation Difference (12.0) divided by the total number of turns. The total number of turns is 4.25: 4 whole Turns plus a quarter turn for the Angular Separation. +END +STEP +PARAMETER helix vertSep 2.5 +MESSAGE +========================================= +END +STEP +CLEAR +MESSAGE +Now that the helix parameters are set we can place the helix on the layout. +END +MOUSE 2 15.375 20.500 +MOUSE 3 15.375 20.500 +MOUSE 3 16.000 16.000 +STEP +MOUSE 4 16.000 16.000 +RESET +MESSAGE +_________________________________________ + +Next, join the 2 straight tracks to the helix in the same way we join to a circle. +END +STEP +COMMAND Join +MOUSE 2 1.875 30.000 +MOUSE 4 1.875 30.000 +MOUSE 2 1.000 17.375 +MOUSE 3 1.000 17.250 +MOUSE 3 1.000 17.000 +MOUSE 3 1.000 17.000 +MOUSE 3 1.000 16.750 +MOUSE 3 1.000 16.500 +MOUSE 3 1.125 16.500 +MOUSE 3 1.125 16.375 +MOUSE 3 1.125 16.250 +MOUSE 4 1.125 16.250 +MOUSE 2 28.125 3.000 +MOUSE 4 28.125 3.000 +MOUSE 2 16.500 1.000 +MOUSE 3 16.500 1.000 +MOUSE 3 16.375 1.000 +MOUSE 3 16.125 1.000 +MOUSE 3 16.125 0.875 +MOUSE 3 16.000 0.875 +MOUSE 3 16.000 0.875 +MOUSE 3 15.875 0.875 +MOUSE 3 15.625 0.875 +MOUSE 3 15.500 1.000 +MOUSE 3 15.375 1.000 +MOUSE 4 15.375 1.000 +MESSAGE +_________________________________________ + +Notice that the length has increased because we have more than 4 turns in the helix. It is closer to 4.25 turns. +END +STEP +COMMAND Elevation +PARAMETER elev mode 0 +PARAMETER elev value 0.000 +PARAMETER elev station +MESSAGE +_________________________________________ + +Next, we assign elevations to the 2 End-Points of the helix. This will determine the grade and separation between the helix coils. + +Note: we could set the elevations anywhere along the connecting tracks instead. XTrackCAD treats a helix as a single length of track for elevations. +END +STEP +MOUSE 2 15.125 1.125 +MOUSE 4 15.125 1.125 +PARAMETER elev mode 1 +PARAMETER elev value 1.000000 +BIGPAUSE +MOUSE 2 1.250 16.000 +MOUSE 4 1.250 16.000 +PARAMETER elev mode 1 +PARAMETER elev value 13.000000 +PARAMETER elev ok +BIGPAUSE +RESET +REDRAW +MESSAGE +_________________________________________ + +We have set the elevations to 1" and 13" to produce a grade of 3.0% with 2.8" between coils. + +You can use the <Describe> command to change the number of Turns or the Elevations at either end of the Helix. This will affect the Grade and Vertical Separation. +END +STEP +MESSAGE +_________________________________________ + +The helix description can be moved by the <Move Label> command. +END +COMMAND MoveLabel +MOUSE 2 15.875 16.125 +MOUSE 3 16.125 6.250 +MOUSE 4 16.125 6.250 +MESSAGE +========================================= +END +STEP +CLEAR |