Draw an ellipse by general method, given distance of focus from directrix 65mm and eccentricity ¾. A 1’ E C F V B Given CF=65mm Given, eccentricity=3/4.
Download ReportTranscript Draw an ellipse by general method, given distance of focus from directrix 65mm and eccentricity ¾. A 1’ E C F V B Given CF=65mm Given, eccentricity=3/4.
Slide 1
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 2
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 3
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 4
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 2
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 3
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D
Slide 4
Draw an ellipse by general method, given distance of focus from
directrix 65mm and eccentricity ¾.
A
1’
E
C
F
V
1
B
Given CF=65mm
Given, eccentricity=3/4. Therefore divide CF in 7 equal
parts and mark V at 3rd division from F
Laxmi Institute of Technology, sarigam
PROBLEM
A regular hexagon of 40mm side has a corner in the HP.
Its surface inclined at45° to the HP and the top view of
the diagonal through the corner which is in the HP
makes an angle of 60° with the VP. Draw its projections.
Plane inclined to HP
at 45°and ┴ to VP
Plane parallel to HP
Top view of the diagonal
making 60° with the VP.
d1’
c1’
e1’
b1’
b’
f’
a’
X
c’
e’
d’
f1’
Y
a1’
45°
60°
f
f1
e
f1
a1
e1
e1
b1
a
d
d1
a1
c
1
b
c
b1
c1
d1
3
4
2
P3
3’
1
4’
2’
P2
5
P4
P5
5’
1’
P1
P6
6
6’
P12
12
12’
7’
11’
P7
P11
8’
10’
7
9’
11
P10
P8
P9
8
10
9
PROBLEM: A point moves in a plane in such a way that its distance from a fixed point is equal to its distance from a fixed line. The
distance between fixed point and the fixed line is 65 mm.
A
1’
E
2’
3’
4’
F
C
1
2
3
4
B
D