 Version 1.0.0 Circular Curves
Circular Curves
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• Simple Curve
• Reverse Curve
• Compound Curve
• • Companion Apps & Books • Terms and Conditions • Free Stuff • Online Tips and Tricks Simple Curve
Example: Round=3 Curve=RT R=5280.00 L=100.00
INPUT KNOWN INFORMATION
SIMPLE CURVE RESULTS
Simple Curve
Examples
Codes

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
LTBout = (BRG or GON)
CDOC = (dd-mm-ss or xxx.xxx)
RBin = (BRG or GON)
RBout = (BRG or GON)
D = (dd-mm-ss or xxx.xxx)
L = (Arc length)
T = (Tangent distance)
C = (Chord distance)
CB = (Chord BRG or GON)
PC = (Station xx+xx.xx or xxxx.xx)

Reverse Curve
INPUT KNOWN INFORMATION
Example: Round=3 Curve=RT R1=1000.00 D1=45-00-00 R2=1200.00 D2=36-12-53
REVERSE CURVE RESULTS
Reverse Curve
Examples
Codes

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
D1 = (dd-mm-ss or xxx.xxx)
D2 = (dd-mm-ss or xxx.xxx)
PC = (Station xx+xx.xx or xxxx.xx)

Required:
R1, D1, R2 & D2
Optional:
Round, Name, Curve, AUnit, DUnit, LTBin & PC

Compound Curve
INPUT KNOWN INFORMATION
Example: Round=3 Curve=RT R1=1000.00 D1=45-00-00 R2=1200.00 D2=36-12-53
COMPOUND CURVE RESULTS
Compound Curve
Examples
Codes

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
D1 = (dd-mm-ss or xxx.xxx)
D2 = (dd-mm-ss or xxx.xxx)
PC = (Station xx+xx.xx or xxxx.xx)

Required:
R1, D1, R2 & D2
Optional:
Round, Name, Curve, AUnit, DUnit, LTBin & PC

Simple Curve

### SIMPLE CURVE INSTRUCTIONS AND CODES --------------------------

This program is designed with a unique interface to make it easy to input known curve information.

Each (CODE = VALUE) are entered on separate lines.

The FIRST line is for setting the decimal rounding value. This line is optional. (ROUND=3) is the default setting. Change this value to the desired value. This setting must be on the FIRST line.

The NEXT line is for setting the curve direction. This line is optional. (CURVE=RT) is the default setting. Change this value to LT for a left curve.

The NEXT line is for the first known curve information such as the Radius value. (CODE=VALUE) for the first known curve value.
For Example: R=xxxx.xx where the 'x' would be replaced with the known radius.

The NEXT line is for the second known curve information such as the arc length.
(CODE=VALUE) for the second known curve value.
For Example: L=xxxx.xx where the 'x' would be replaced with the known length.

Additional lines are for optional information such as the Unit value, etc.:
(AUnit=GON) Unit value defaults to DEG.
(DUnit=M) Unit value defaults to IFT
--------------------------
This app is designed to utilize the curve information that is typically shown in Legal Descriptions such as: Tangent in (LTB in), Radius, Delta, Arc Length, Chord bearing/distance, In Radial bearing, Tangent out (LTB out). Additional information can be entered such as: PC Station, Tangent distance, Degree of curvature.

Two known curve components are needed to calculate the remaining components. Enter the two known curve components by using the appropriate codes then the equals sign '=' followed by the value for that component.

If more that two known curve components are entered, only the first two known curve components will be utilized to calculate the remaining components.

The following are some examples:

Round=5
Curve=LT
R=1200.00
L=300.00

Round=4
Curve=RT
T=500.00
C=800.00
AUnit=GON
DUnit=M

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
LTBout = (BRG or GON)
CDOC = (dd-mm-ss or xxx.xxx)
RBin = (BRG or GON)
RBout = (BRG or GON)
D = (dd-mm-ss or xxx.xxx)
L = (Arc length)
T = (Tangent distance)
C = (Chord distance)
CB = (Chord BRG or GON)
PC = (Station xx+xx.xx or xxxx.xx)

NOTES:
Bearing is entered as:
Ndd-mm-ssE or
Nd.dddE

GON (a.k.a. GRAD) is entered as:
xxx.xxxxxxxx

Degree of Curvature is for a 1 degree curve definition

Not all code combinations will work. You will need to experiment with different codes to see which ones produce the results you are expecting. Our experience has shown that using a Radius (R) and Delta (D) produces the most accurate results for the other curve components. The rounding of the distances to two decimal places in legal descriptions and reports will produce different results when reversing the process to calculate R & D values.

Reverse Curve

### REVERSE CURVE INSTRUCTIONS AND CODES --------------------------

This program is designed with a unique interface to make it easy to input known curve information.

The Reverse Curve module codes are limited to R and D values for each curve. You may need to use the Simple Curve module to determine the R and D values for each curve if they are unknown.

Each (CODE = VALUE) are entered on separate lines.

The FIRST line is for setting the decimal rounding value. This line is optional. (ROUND=3) is the default setting. Change this value to the desired value. This setting must be on the FIRST line.

The NEXT line is for setting the first curve direction. This line is optional. (CURVE=RT) is the default setting. Change this value to LT for a left curve.

The NEXT line is for the first curve Radius information . (R1=VALUE) for the first curve Radius value.
For Example: R1=xxxx.xx where the 'x' would be replaced with the known radius.

The NEXT line is for the first curve Delta information.
(D1=VALUE) for the first curve Delta value.
For Example: D1=xx-xx-xx where the 'x' would be replaced with the known delta.

The NEXT line is for the second curve Radius information . (R2=VALUE) for the second curve Radius value.
For Example: R2=xxxx.xx where the 'x' would be replaced with the known radius.

The NEXT line is for the second curve Delta information.
(D2=VALUE) for the second curve Delta value.
For Example: D2=xx-xx-xx where the 'x' would be replaced with the known delta.

Additional lines are for optional information such as the Unit value, etc.:
(AUnit=GON) Unit value defaults to DEG.
(DUnit=M) Unit value defaults to IFT
--------------------------
This app is designed to utilize the curve information that is typically shown in Legal Descriptions such as: Tangent in (LTB in). Additional information can be entered such as: PC Station.

The following are some examples:

Round=5
Curve=LT
R1=1200.00
D1=23-12-32
R2=1500.00
D2=12-23-45

Round=4
Curve=RT
R1=500.00
D1=56-34-33
R2=600.00
D2=55-23-12
AUnit=GON
DUnit=M
PC=1200+00.00
LTBin=N23-34-44E

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
D1 = (dd-mm-ss or xxx.xxx)
D2 = (dd-mm-ss or xxx.xxx)
PC = (Station xx+xx.xx or xxxx.xx)

NOTES:
Bearing is entered as:
Ndd-mm-ssE or
Nd.dddE

GON (a.k.a. GRAD) is entered as:
xxx.xxxxxxxx

Not all code combinations will work. You will need to experiment with different codes to see which ones produce the results you are expecting. Our experience has shown that using a Radius (R) and Delta (D) produces the most accurate results for the other curve components. The rounding of the distances to two decimal places in legal descriptions and reports will produce different results when reversing the process to calculate R & D values.

Compound Curve

### COMPOUND CURVE INSTRUCTIONS AND CODES --------------------------

This program is designed with a unique interface to make it easy to input known curve information.

The Compound Curve module codes are limited to R and D values for each curve. You may need to use the Simple Curve module to determine the R and D values for each curve if they are unknown.

Each (CODE = VALUE) are entered on separate lines.

The FIRST line is for setting the decimal rounding value. This line is optional. (ROUND=3) is the default setting. Change this value to the desired value. This setting must be on the FIRST line.

The NEXT line is for setting the first curve direction. This line is optional. (CURVE=RT) is the default setting. Change this value to LT for a left curve.

The NEXT line is for the first curve Radius information . (R1=VALUE) for the first curve Radius value.
For Example: R1=xxxx.xx where the 'x' would be replaced with the known radius.

The NEXT line is for the first curve Delta information.
(D1=VALUE) for the first curve Delta value.
For Example: D1=xx-xx-xx where the 'x' would be replaced with the known delta.

The NEXT line is for the second curve Radius information . (R2=VALUE) for the second curve Radius value.
For Example: R2=xxxx.xx where the 'x' would be replaced with the known radius.

The NEXT line is for the second curve Delta information.
(D2=VALUE) for the second curve Delta value.
For Example: D2=xx-xx-xx where the 'x' would be replaced with the known delta.

Additional lines are for optional information such as the Unit value, etc.:
(AUnit=GON) Unit value defaults to DEG.
(DUnit=M) Unit value defaults to IFT
--------------------------
This app is designed to utilize the curve information that is typically shown in Legal Descriptions such as: Tangent in (LTB in). Additional information can be entered such as: PC Station.

The following are some examples:

Round=5
Curve=LT
R1=1200.00
D1=23-12-32
R2=1500.00
D2=12-23-45

Round=4
Curve=RT
R1=500.00
D1=56-34-33
R2=600.00
D2=55-23-12
AUnit=GON
DUnit=M
PC=1200+00.00
LTBin=N23-34-44E

Below are the available codes:

Round = 3 (default) FIRST LINE
Name = Name of Curve or comment
Curve = RT or LT (Default RT)
AUnit = DEG or GON (default is DEG)
DUnit = IFT or USF or M (default IFT)
LTBin = (BRG or GON)
D1 = (dd-mm-ss or xxx.xxx)
D2 = (dd-mm-ss or xxx.xxx)
PC = (Station xx+xx.xx or xxxx.xx)

NOTES:
Bearing is entered as:
Ndd-mm-ssE or
Nd.dddE

GON (a.k.a. GRAD) is entered as:
xxx.xxxxxxxx

Not all code combinations will work. You will need to experiment with different codes to see which ones produce the results you are expecting. Our experience has shown that using a Radius (R) and Delta (D) produces the most accurate results for the other curve components. The rounding of the distances to two decimal places in legal descriptions and reports will produce different results when reversing the process to calculate R & D values.

Free Stuff Written by Surveyors for Surveyors, Engineers and aspiring Students.
Author/Programmer: Jim Crume P.L.S., M.S., CFedS   