Package velox.api.layer1.utils

Class PriceRangeCalculationHelper

java.lang.Object

velox.api.layer1.utils.PriceRangeCalculationHelper

public class PriceRangeCalculationHelper
extends Object

Provides implementations of price range calculation

Field Summary

Fields

Modifier and Type	Field	Description
static final int	MAX_NEGATIVE_PRICES_STEPS_MULTIPLIER_POWER
static final int	MAX_POSITIVE_PRICES_STEPS_MULTIPLIER_POWER
static final int[]	PRICES_STEPS_MULTIPLIERS

Constructor Summary

Constructors

Constructor	Description
PriceRangeCalculationHelper()

Method Summary

Modifier and Type	Method	Description
static Layer1PriceAxisRangeCalculatable.ResultPriceAxisInfo	getGoodNumbersCalculation(double minValue, double maxValue, double linesCount)	Provides an implementation of price range calculation that displays only "good" numbers on axis (1, 2, 5, 10, 25, 50 * 10^2n and their multipliers)
static Map<String,Layer1PriceAxisRangeCalculatable.ResultPriceAxisInfo>	getGoodNumbersCalculation(double linesCount, Map<String,Layer1PriceAxisRangeCalculatable.InputPriceAxisInfo> inputInfo)	Invokes getGoodNumbersCalculation(double, double, double) for every map entry
static CalculatePricesResult	getGoodNumbersPriceResult(double minValue, double maxValue, double linesCount)	Same as getGoodNumbersCalculation(double, double, double), different return type You don't need to use this method unless you want to see advanced parameters of best solution

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

PRICES_STEPS_MULTIPLIERS

public static final int[] PRICES_STEPS_MULTIPLIERS

MAX_POSITIVE_PRICES_STEPS_MULTIPLIER_POWER

public static final int MAX_POSITIVE_PRICES_STEPS_MULTIPLIER_POWER

See Also:

• Constant Field Values

MAX_NEGATIVE_PRICES_STEPS_MULTIPLIER_POWER

public static final int MAX_NEGATIVE_PRICES_STEPS_MULTIPLIER_POWER

See Also:

• Constant Field Values

Constructor Details

PriceRangeCalculationHelper

public PriceRangeCalculationHelper()

Method Details

getGoodNumbersCalculation

public static Layer1PriceAxisRangeCalculatable.ResultPriceAxisInfo getGoodNumbersCalculation(double minValue,
 double maxValue,
 double linesCount)

Provides an implementation of price range calculation that displays only "good" numbers on axis (1, 2, 5, 10, 25, 50 * 10^2n and their multipliers)

Parameters:

minValue - minimal value of indicator on chart range

maxValue - maximum value of indicator on chart range

linesCount - number of visible horizontal lines, that can display labels. Note that this value is double.
Value 2.3 will means 2 visible lines, and 3/10 of distance between lines as empty space to the top

Returns:

getGoodNumbersCalculation

public static Map<String,Layer1PriceAxisRangeCalculatable.ResultPriceAxisInfo> getGoodNumbersCalculation(double linesCount,
 Map<String,Layer1PriceAxisRangeCalculatable.InputPriceAxisInfo> inputInfo)

Invokes getGoodNumbersCalculation(double, double, double) for every map entry

getGoodNumbersPriceResult

public static CalculatePricesResult getGoodNumbersPriceResult(double minValue,
 double maxValue,
 double linesCount)

Same as getGoodNumbersCalculation(double, double, double), different return type
You don't need to use this method unless you want to see advanced parameters of best solution

Parameters:

minValue - minimal value of indicator on chart range

maxValue - maximum value of indicator on chart range

linesCount - number of visible horizontal lines, that can display labels. Note that this value is double.
Value 2.3 will means 2 visible lines, and 3/10 of distance between lines as empty space to the top

Returns:

best calculated result or null if non was calculated